#A9B31C#A9B31C

#A9B31C is a light, vivid yellow. Relative luminance 0.408; OKLCH L 73.4% C 0.158 H 113.8°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#A9B31C
RGB	rgb(169, 179, 28)
HSL	hsl(64, 73%, 41%)
HSV	hsv(64, 84%, 70%)
CMYK	cmyk(5.6%, 0%, 84.4%, 29.8%)
CIE-LAB	lab(70.01, -20.39, 67.25)
CIE-LCH	lch(70.01, 70.27, 106.87°)
OKLab	oklab(73.45% -0.0638 0.1447)
OKLCH	oklch(73.45% 0.158 113.8)
XYZ	xyz(32.6930, 40.7598, 7.2436)
Luminance	0.4076 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A9B31C #261CB3

analogous

#B3721C #A9B31C #5DB31C

triadic

#A9B31C #1CA9B3 #B31CA9

tetradic

#A9B31C #1CB372 #261CB3 #B31C5D

square

#A9B31C #1CB372 #261CB3 #B31C5D

split-complementary

#A9B31C #1C5DB3 #721CB3

monochromatic

#45490B #777E14 #A9B31C #D3DE2E #DEE763

Accessibility & contrast

On white

2.29

#A9B31C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#A9B31C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9B31C

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A9B31C	#FFFFFF	#000000	##000000
##A9B31C	1.00	2.29	9.15	9.15
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA00

Deuteranopia (green-blind)

#C1AC2D

Tritanopia (blue-blind)

#B5A899

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #a9b31c;
/* rgb */ color: rgb(169, 179, 28);
/* oklch */ color: oklch(73.4% 0.158 113.8);

Tailwind

colors: {
  custom: {
    50: '#c7c96a',
    500: '#a9b31c',
    950: '#000000',
  },
}

SCSS

$custom: #a9b31c;
$custom-light: #c7c96a;
$custom-dark: #000000;

JSON

{
  "hex": "#a9b31c",
  "rgb": {
    "r": 169,
    "g": 179,
    "b": 28
  },
  "hsl": {
    "h": 63.974,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.73447,
    "c": 0.15818,
    "h": 113.8
  },
  "luminance": 0.40759
}

Semantic roles & 50–950 ramp

primary

#A9B31C

secondary

#675FCB

accent

#38F044

background

#FCFCF6

surface

#F9F8EC

border

#D2D1C7

text

#141307

muted

#82827A

Preview Lab

Preview with #A9B31C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →