Color reference

#42ADAD color reference

Soft Light Teal

This is a soft, light teal under the deterministic OKLCH hue, lightness, and chroma ranges. Its closest standardized CSS named color is Light Sea Green (#20B2AA), measured with straight-line OKLab distance.

Descriptive label
Soft Light Teal
Recommended text
Black · 7.81:1
Relative luminance
0.340625
Build a palette from #42ADAD in Palette Generator Convert #42ADAD in Color Converter
Formats UI preview Contrast 50–900 scale Harmonies Matches Related colors Color vision Exports

Copyable values

#42ADAD in common color formats

Values are calculated from the same opaque sRGB color. Display rounding does not alter the internal calculations.

Color conversions for #42ADAD
Format Value Action
HEX #42ADAD
RGB rgb(66 173 173)
HSL hsl(180 44.77% 46.86%)
HSV hsv(180 61.85% 67.84%)
HWB hwb(180 25.88% 32.16%)
XYZ D65 color(xyz-d65 0.247317 0.340611 0.448076)
LAB lab(64.7261% -31.4937 -9.6076)
LCH lch(64.7261% 32.9265 196.9651)
OKLAB oklab(68.712% -0.093073 -0.025188)
OKLCH oklch(68.712% 0.096421 195.1432)

Real-world test

Try #42ADAD on interface components

Preview the source as a primary action, subtle status, form treatment, and card surface. Persistent state controls help touch and keyboard users inspect the same normal, hover, and active colors.

Normal state uses #42ADAD with black text at 7.81:1.

Action

Primary button

Use the controls above or point to and press the button to inspect its visual states.

Status

Subtle alert badge

A 12% source tint over white provides the background; readable text is selected separately.

Ready for review

Form

Border and focus ring

Source ring on white: 2.69:1 · does not meet the 3:1 non-text threshold where applicable.

Surface

Card component

The selected state becomes the card surface with its strongest black-or-white text pairing.

Design system Color decision ready Review states and surrounding surfaces before shipping.

Accessibility diagnostics

WCAG contrast for exact color pairs

Each result applies only to the named foreground, background, text size, and requirement. It is not a complete accessibility or component-conformance claim.

Source #42ADAD Exact pair assessment Results for source text on white appear below.

On white

2.69:1

  • Fail AA normal text · 4.5:1
  • Fail AAA normal text · 7:1
  • Fail AA large text · 3:1
  • Fail UI/non-text where applicable · 3:1
Source #42ADAD Exact pair assessment Results for source text on black appear below.

On black

7.81:1

  • Pass AA normal text · 4.5:1
  • Pass AAA normal text · 7:1
  • Pass AA large text · 3:1
  • Pass UI/non-text where applicable · 3:1

Use guidance

What this color may be suitable for

Not recommended

Normal-sized text

#42ADAD does not reach 4.5:1 on white or Hue Codex paper, so it should not be used there for normal-sized text.

Needs a boundary

Controls and interface graphics

Against Hue Codex paper, the color reaches only 2.57:1. Use a contrasting border or another non-color boundary for meaningful controls and graphics.

Readable pairing available

Colored surface or button fill

Black text provides the stronger black/white pairing on #42ADAD at 7.81:1. This validates only that text pair, not hover, focus, disabled, or adjacent-color states.

Distinctive accent

Palette role

Its OKLCH chroma of 0.0964 gives it enough visual presence for an accent or primary role when the tested foreground and neighboring colors pass.

Pair available

Color used as foreground

The stronger black/white background is black at 7.81:1. Always retest against the actual rendered background and text size.

Tested backgrounds

Foreground pairing comparison

#42ADAD foreground contrast on tested backgrounds
Pair Background Contrast ratio
Black#000000 7.81:1
Hue Codex ink#10212B 6.13:1
White#FFFFFF 2.69:1
Hue Codex paper#FBFAF5 2.57:1
Soft neutral#F2EFE6 2.34:1
Check #42ADAD on another background in Contrast Checker

Design-system starting point

A perceptual 50–900 reference scale

The source color is preserved at the nearest lightness step. Other swatches keep its OKLCH hue, moderate chroma toward the extremes, and reduce chroma only when needed to remain in sRGB.

50
100
200
300
400 #42ADAD Source
500
600
700
800
900

This is a Hue Codex reference scale, not a claim that the values match Tailwind, Material, or another framework’s named palette.

Adjust the #42ADAD scale in Tints, Shades & Tones

Color relationships

Complementary, analogous, and triadic colors

Hue rotations use OKLCH while preserving lightness and requested chroma. When a rotated result falls outside sRGB, chroma is reduced deterministically and disclosed.

Complementary

Source #42ADAD
Complement

Analogous

Source #42ADAD
Analogous −30°
Analogous +30°

Triadic

Source #42ADAD
Triad +120°
Triad +240°

Applied pairing

A small interface check

The source anchors the main action while the complement marks a secondary status. Contrast is selected separately for each fill.

Project color Soft Light Teal
Complement
Explore #42ADAD in Color Harmonies

Distance matching

Closest standardized and framework colors

Matches use straight-line OKLab distance ×100. A smaller value means the coordinates are closer in this model; it is not a claim that two tokens are interchangeable in a design system.

CSS named color

Light Sea Green

#20B2AA

OKLab distance ×100: 2.15

Tailwind v4 default

teal-500

oklch(70.4% 0.14 182.503)

OKLab distance ×100: 5.33 · sRGB preview #00BBA7

Print boundary

Pantone match not estimated

Reliable print matching needs licensed reference data plus a defined ink, paper, profile, and viewing condition.

Read the print methodology

Color-vision screening

Approximate color-vision-deficiency views

These encoded-sRGB matrix previews are screening approximations. They help reveal possible color-only distinctions but do not reproduce every person’s vision or establish accessibility conformance.

Original#42ADAD
Approx.

Protanopia

Red-vision deficiency approximation

Original#42ADAD
Approx.

Deuteranopia

Green-vision deficiency approximation

Original#42ADAD
Approx.

Tritanopia

Blue-yellow deficiency approximation

Original#42ADAD
Approx.

Achromatopsia

Monochromatic-vision approximation

Test #42ADAD with a complete palette in the CVD Simulator

Ready to use

Copy framework-ready color tokens

Exports preserve the source, readable foreground, and generated 50–900 scale. Tailwind v4 CSS-first and Tailwind v3 JavaScript-config formats are labeled separately.

CSS custom properties

Semantic aliases and the complete 50–900 scale.

:root {
  --color-primary: #42ADAD;
  --color-on-primary: #000000;
  --color-primary-oklch: oklch(68.712% 0.096421 195.1432);
  --color-primary-50: #D4FFFE;
  --color-primary-100: #A9EDEC;
  --color-primary-200: #85D4D4;
  --color-primary-300: #5FBDBC;
  --color-primary-400: #42ADAD;
  --color-primary-500: #1E8B8B;
  --color-primary-600: #007272;
  --color-primary-700: #005959;
  --color-primary-800: #004141;
  --color-primary-900: #002B2B;
}

Tailwind v4 CSS-first theme

Current @theme syntax for bg-brand, text-brand, and scale utilities.

@import "tailwindcss";

@theme {
  --color-brand: #42ADAD;
  --color-brand-foreground: #000000;
  --color-brand-50: #D4FFFE;
  --color-brand-100: #A9EDEC;
  --color-brand-200: #85D4D4;
  --color-brand-300: #5FBDBC;
  --color-brand-400: #42ADAD;
  --color-brand-500: #1E8B8B;
  --color-brand-600: #007272;
  --color-brand-700: #005959;
  --color-brand-800: #004141;
  --color-brand-900: #002B2B;
}

Tailwind v3 / legacy config

CommonJS theme.extend.colors for JavaScript-config projects.

module.exports = {
  theme: {
    extend: {
      colors: {
        brand: {
          '50': '#D4FFFE',
          '100': '#A9EDEC',
          '200': '#85D4D4',
          '300': '#5FBDBC',
          '400': '#42ADAD',
          '500': '#1E8B8B',
          '600': '#007272',
          '700': '#005959',
          '800': '#004141',
          '900': '#002B2B',
          DEFAULT: '#42ADAD',
          foreground: '#000000',
        },
      },
    },
  },
};

Sass variables

Semantic source, foreground, OKLCH, and scale variables.

$color-primary: #42ADAD;
$color-on-primary: #000000;
$color-primary-oklch: oklch(68.712% 0.096421 195.1432);
$color-primary-50: #D4FFFE;
$color-primary-100: #A9EDEC;
$color-primary-200: #85D4D4;
$color-primary-300: #5FBDBC;
$color-primary-400: #42ADAD;
$color-primary-500: #1E8B8B;
$color-primary-600: #007272;
$color-primary-700: #005959;
$color-primary-800: #004141;
$color-primary-900: #002B2B;

Modern color-mix()

Static fallbacks followed by OKLab tint and shade declarations.

:root {
  --color-primary: #42ADAD;
  --color-primary-tint: #85D4D4;
  --color-primary-tint: color-mix(in oklab, var(--color-primary) 72%, white);
  --color-primary-shade: #005959;
  --color-primary-shade: color-mix(in oklab, var(--color-primary) 82%, black);
}

JSON design data

Source formats, readable text, and the generated scale.

{
    "name": "Soft Light Teal",
    "hex": "#42ADAD",
    "rgb": "rgb(66 173 173)",
    "oklch": "oklch(68.712% 0.096421 195.1432)",
    "recommendedText": "#000000",
    "scale": {
        "50": "#D4FFFE",
        "100": "#A9EDEC",
        "200": "#85D4D4",
        "300": "#5FBDBC",
        "400": "#42ADAD",
        "500": "#1E8B8B",
        "600": "#007272",
        "700": "#005959",
        "800": "#004141",
        "900": "#002B2B"
    }
}

Continue the decision

Use #42ADAD in a complete workflow

Reference values are a starting point. Test the color in its real role, background, states, typography, and surrounding palette before shipping.

Adjust #42ADAD in Color PickerStart with this exact color and white as the working background for role and accessibility decisions. Build a palette from #42ADAD in Palette GeneratorUse this exact HEX as the seed for a deterministic, role-based palette. Check #42ADAD on white in Contrast CheckerStart with this color as the foreground and white as the background, then test the real pair.