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Hue Codex color family library with thirteen tonal ladders arranged around a neutral focus frame.

Hue family

Yellow-green HEX colors.

Yellow-green bridges yellow and green from 105° to below 140° in OKLCH. The references include olive, chartreuse, lime-leaning, and pale botanical values across several lightness levels.

Family definition

How Hue Codex classifies yellow-green colors.

A chromatic color is yellow-green in Hue Codex when its OKLCH hue is at least 105° and below 140°. This transition includes olive, chartreuse, acid yellow, and lime-leaning references.

Boundary with neighboring families

Yellow ends at 105°, and green begins at 140°. The family bridges those intervals, so lowering or raising the hue across either fixed boundary changes the label before other color properties are considered.

Name versus measurement

CSS YellowGreen (#9ACD32) is a member of this family at 126.64°. CSS Yellow (#FFFF00) also falls here at 109.77°, demonstrating why standardized names and measured family assignments are separate concepts.

Dark, middle, and light reference points

These fixed examples mark the ordered set by OKLCH lightness. They are orientation points, not claims that a color is suitable for a particular text, interface, or brand role.

Yellow-green family reference points ordered by OKLCH lightness
Range position Color reference HEX OKLCH L
Dark end Muted Very Dark Yellow-green #080800 13.0%
Middle reference Clear Light Yellow-green #C5C519 79.8%
Light end Muted Very Light Yellow-green #FFFFE6 99.3%

Practical workflow

Use yellow-green references in three steps.

A family is a starting point for exploration. Make final decisions with the exact color value and the context where it will be used.

  1. Choose an exact HEX value. Open a reference above to review its measured formats, related colors, role guidance, and copy-ready CSS tokens.
  2. Check formats and contrast. Use the Color Converter, then verify the intended foreground and background in the Contrast Checker. A family label alone does not establish accessibility.
  3. Build and document the system. Create related candidates with the Palette Generator and review the reference-data methodology when you need the classification rules and limitations.

Common questions

Yellow-green color family questions.

Are Yellow and YellowGreen the same CSS color?
No. They are separate CSS keywords with different HEX values, but both calculated hues fall inside the Hue Codex yellow-green interval.
Does the color name decide whether a value is yellow-green?
No. Hue Codex uses the measured OKLCH hue and chroma, so a color can enter this family even when its conventional or CSS name contains only yellow or green.

Hue family directory

Browse the fixed color families.