#A9B731#A9B731

#A9B731 is a light, vivid yellow. Relative luminance 0.425; OKLCH L 74.5% C 0.152 H 115.4°. Best body text is #000000 at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#A9B731
RGB	rgb(169, 183, 49)
HSL	hsl(66, 58%, 45%)
HSV	hsv(66, 73%, 72%)
CMYK	cmyk(7.7%, 0%, 73.2%, 28.2%)
CIE-LAB	lab(71.23, -21.58, 62.23)
CIE-LCH	lch(71.23, 65.86, 109.13°)
OKLab	oklab(74.46% -0.0655 0.1377)
OKLCH	oklch(74.46% 0.152 115.4)
XYZ	xyz(33.8510, 42.5243, 9.3299)
Luminance	0.4252 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A9B731 #3F31B7

analogous

#B78231 #A9B731 #66B731

triadic

#A9B731 #31A9B7 #B731A9

tetradic

#A9B731 #31B782 #3F31B7 #B73166

square

#A9B731 #31B782 #3F31B7 #B73166

split-complementary

#A9B731 #3166B7 #8231B7

monochromatic

#505617 #7C8724 #A9B731 #C4D154 #D5DE84

Accessibility & contrast

On white

2.21

#A9B731 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.50

#A9B731 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9B731

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A9B731	#FFFFFF	#000000	##000000
##A9B731	1.00	2.21	9.50	9.50
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.50	21.00	1.00	1.00
##000000	9.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AE16

Deuteranopia (green-blind)

#C3AF3C

Tritanopia (blue-blind)

#B4AC9D

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #a9b731;
/* rgb */ color: rgb(169, 183, 49);
/* oklch */ color: oklch(74.5% 0.152 115.4);

Tailwind

colors: {
  custom: {
    50: '#c6cc73',
    500: '#a9b731',
    950: '#000000',
  },
}

SCSS

$custom: #a9b731;
$custom-light: #c6cc73;
$custom-dark: #000000;

JSON

{
  "hex": "#a9b731",
  "rgb": {
    "r": 169,
    "g": 183,
    "b": 49
  },
  "hsl": {
    "h": 66.269,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.7446,
    "c": 0.15246,
    "h": 115.4
  },
  "luminance": 0.42524
}

Semantic roles & 50–950 ramp

primary

#A9B731

secondary

#847CC8

accent

#47E157

background

#FCFCF7

surface

#F8F8ED

border

#D1D1C8

text

#131309

muted

#82827B

Preview Lab

Preview with #A9B731

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

Preview Lab → · Contrast checker → · Palette generator →