#A9B31B#A9B31B

#A9B31B is a light, vivid yellow. Relative luminance 0.408; OKLCH L 73.4% C 0.159 H 113.8°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#A9B31B
RGB	rgb(169, 179, 27)
HSL	hsl(64, 74%, 40%)
HSV	hsv(64, 85%, 70%)
CMYK	cmyk(5.6%, 0%, 84.9%, 29.8%)
CIE-LAB	lab(70.00, -20.42, 67.48)
CIE-LCH	lch(70.00, 70.50, 106.84°)
OKLab	oklab(73.44% -0.0639 0.1451)
OKLCH	oklch(73.44% 0.159 113.8)
XYZ	xyz(32.6812, 40.7551, 7.1816)
Luminance	0.4075 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A9B31B #251BB3

analogous

#B3711B #A9B31B #5DB31B

triadic

#A9B31B #1BA9B3 #B31BA9

tetradic

#A9B31B #1BB371 #251BB3 #B31B5D

square

#A9B31B #1BB371 #251BB3 #B31B5D

split-complementary

#A9B31B #1B5DB3 #711BB3

monochromatic

#45490B #777E13 #A9B31B #D3DF2C #DEE761

Accessibility & contrast

On white

2.29

#A9B31B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#A9B31B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9B31B

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A9B31B	#FFFFFF	#000000	##000000
##A9B31B	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)

#C1AC2C

Tritanopia (blue-blind)

#B5A899

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #a9b31b;
/* rgb */ color: rgb(169, 179, 27);
/* oklch */ color: oklch(73.4% 0.159 113.8);

Tailwind

colors: {
  custom: {
    50: '#c7c969',
    500: '#a9b31b',
    950: '#000000',
  },
}

SCSS

$custom: #a9b31b;
$custom-light: #c7c969;
$custom-dark: #000000;

JSON

{
  "hex": "#a9b31b",
  "rgb": {
    "r": 169,
    "g": 179,
    "b": 27
  },
  "hsl": {
    "h": 63.947,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.73444,
    "c": 0.15854,
    "h": 113.8
  },
  "luminance": 0.40754
}

Semantic roles & 50–950 ramp

primary

#A9B31B

secondary

#655ECC

accent

#37F044

background

#FCFCF6

surface

#F9F8EC

border

#D2D1C7

text

#141307

muted

#82827A

Preview Lab

Preview with #A9B31B

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

Preview Lab → · Contrast checker → · Palette generator →