Color reference

#B0C4DE color reference

Light Steel Blue

This is a muted, light blue under the deterministic OKLCH hue, lightness, and chroma ranges.

Exact CSS name
Light Steel Blue
Recommended text
Black · 11.8:1
Relative luminance
0.539839
Build a palette from #B0C4DE in Palette Generator Convert #B0C4DE in Color Converter
Formats UI preview Contrast 50–900 scale Harmonies Matches Related colors Color vision Exports

Copyable values

#B0C4DE in common color formats

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

Color conversions for #B0C4DE
Format Value Action
HEX #B0C4DE
RGB rgb(176 196 222)
HSL hsl(214 41.07% 78.04%)
HSV hsv(214 20.72% 87.06%)
HWB hwb(214 69.02% 12.94%)
XYZ D65 color(xyz-d65 0.508266 0.539833 0.768516)
LAB lab(78.2634% -2.9015 -15.4343)
LCH lch(78.2634% 15.7047 259.3532)
OKLAB oklab(81.3623% -0.011055 -0.041356)
OKLCH oklch(81.3623% 0.042808 255.0334)

Real-world test

Try #B0C4DE 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 #B0C4DE with black text at 11.8:1.

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: 1.78:1 · 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 #B0C4DE Exact pair assessment Results for source text on white appear below.

On white

1.78:1

  • 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 #B0C4DE Exact pair assessment Results for source text on black appear below.

On black

11.8:1

  • 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

#B0C4DE 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 1.7:1. 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 #B0C4DE at 11.8:1. This validates only that text pair, not hover, focus, disabled, or adjacent-color states.

Restrained neutral

Palette role

Its OKLCH chroma of 0.0428 is restrained, which is generally more suitable for surfaces, borders, or neutral system roles than for a vivid accent.

Pair available

Color used as foreground

The stronger black/white background is black at 11.8:1. Always retest against the actual rendered background and text size.

Tested backgrounds

Foreground pairing comparison

#B0C4DE foreground contrast on tested backgrounds
Pair Background Contrast ratio
Black#000000 11.8:1
Hue Codex ink#10212B 9.26:1
White#FFFFFF 1.78:1
Hue Codex paper#FBFAF5 1.7:1
Soft neutral#F2EFE6 1.55:1
Check #B0C4DE 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 #B0C4DE Source
300
400
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 #B0C4DE 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 #B0C4DE
Complement

Analogous

Source #B0C4DE
Analogous −30°
Analogous +30°

Triadic

Source #B0C4DE
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 Light Steel Blue
Complement
Explore #B0C4DE 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 Steel Blue

#B0C4DE

Exact standardized CSS match.

Tailwind v4 default

slate-300

oklch(86.9% 0.022 252.894)

OKLab distance ×100: 5.92 · sRGB preview #CAD5E2

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#B0C4DE
Approx.

Protanopia

Red-vision deficiency approximation

Original#B0C4DE
Approx.

Deuteranopia

Green-vision deficiency approximation

Original#B0C4DE
Approx.

Tritanopia

Blue-yellow deficiency approximation

Original#B0C4DE
Approx.

Achromatopsia

Monochromatic-vision approximation

Test #B0C4DE 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: #B0C4DE;
  --color-on-primary: #000000;
  --color-primary-oklch: oklch(81.3623% 0.042808 255.0334);
  --color-primary-50: #EFF6FF;
  --color-primary-100: #D0E0F5;
  --color-primary-200: #B0C4DE;
  --color-primary-300: #9AADC5;
  --color-primary-400: #8294AB;
  --color-primary-500: #6B7C92;
  --color-primary-600: #556579;
  --color-primary-700: #404E61;
  --color-primary-800: #2B394A;
  --color-primary-900: #182535;
}

Tailwind v4 CSS-first theme

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

@import "tailwindcss";

@theme {
  --color-brand: #B0C4DE;
  --color-brand-foreground: #000000;
  --color-brand-50: #EFF6FF;
  --color-brand-100: #D0E0F5;
  --color-brand-200: #B0C4DE;
  --color-brand-300: #9AADC5;
  --color-brand-400: #8294AB;
  --color-brand-500: #6B7C92;
  --color-brand-600: #556579;
  --color-brand-700: #404E61;
  --color-brand-800: #2B394A;
  --color-brand-900: #182535;
}

Tailwind v3 / legacy config

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

module.exports = {
  theme: {
    extend: {
      colors: {
        brand: {
          '50': '#EFF6FF',
          '100': '#D0E0F5',
          '200': '#B0C4DE',
          '300': '#9AADC5',
          '400': '#8294AB',
          '500': '#6B7C92',
          '600': '#556579',
          '700': '#404E61',
          '800': '#2B394A',
          '900': '#182535',
          DEFAULT: '#B0C4DE',
          foreground: '#000000',
        },
      },
    },
  },
};

Sass variables

Semantic source, foreground, OKLCH, and scale variables.

$color-primary: #B0C4DE;
$color-on-primary: #000000;
$color-primary-oklch: oklch(81.3623% 0.042808 255.0334);
$color-primary-50: #EFF6FF;
$color-primary-100: #D0E0F5;
$color-primary-200: #B0C4DE;
$color-primary-300: #9AADC5;
$color-primary-400: #8294AB;
$color-primary-500: #6B7C92;
$color-primary-600: #556579;
$color-primary-700: #404E61;
$color-primary-800: #2B394A;
$color-primary-900: #182535;

Modern color-mix()

Static fallbacks followed by OKLab tint and shade declarations.

:root {
  --color-primary: #B0C4DE;
  --color-primary-tint: #B0C4DE;
  --color-primary-tint: color-mix(in oklab, var(--color-primary) 72%, white);
  --color-primary-shade: #404E61;
  --color-primary-shade: color-mix(in oklab, var(--color-primary) 82%, black);
}

JSON design data

Source formats, readable text, and the generated scale.

{
    "name": "Light Steel Blue",
    "hex": "#B0C4DE",
    "rgb": "rgb(176 196 222)",
    "oklch": "oklch(81.3623% 0.042808 255.0334)",
    "recommendedText": "#000000",
    "scale": {
        "50": "#EFF6FF",
        "100": "#D0E0F5",
        "200": "#B0C4DE",
        "300": "#9AADC5",
        "400": "#8294AB",
        "500": "#6B7C92",
        "600": "#556579",
        "700": "#404E61",
        "800": "#2B394A",
        "900": "#182535"
    }
}

Continue the decision

Use #B0C4DE 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 #B0C4DE in Color PickerStart with this exact color and white as the working background for role and accessibility decisions. Build a palette from #B0C4DE in Palette GeneratorUse this exact HEX as the seed for a deterministic, role-based palette. Check #B0C4DE on white in Contrast CheckerStart with this color as the foreground and white as the background, then test the real pair.