#A1B31F#A1B31F

#A1B31F is a light, vivid yellow. Relative luminance 0.399; OKLCH L 72.8% C 0.160 H 117.0°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#A1B31F
RGB	rgb(161, 179, 31)
HSL	hsl(67, 70%, 41%)
HSV	hsv(67, 83%, 70%)
CMYK	cmyk(10.1%, 0%, 82.7%, 29.8%)
CIE-LAB	lab(69.41, -23.73, 65.77)
CIE-LCH	lch(69.41, 69.92, 109.84°)
OKLab	oklab(72.82% -0.0724 0.1424)
OKLCH	oklch(72.82% 0.16 117)
XYZ	xyz(31.0662, 39.9166, 7.3642)
Luminance	0.3992 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1B31F #311FB3

analogous

#B37B1F #A1B31F #57B31F

triadic

#A1B31F #1FA1B3 #B31FA1

tetradic

#A1B31F #1FB37B #311FB3 #B31F57

square

#A1B31F #1FB37B #311FB3 #B31F57

split-complementary

#A1B31F #1F57B3 #7B1FB3

monochromatic

#434B0D #727F16 #A1B31F #C7DC33 #D6E568

Accessibility & contrast

On white

2.34

#A1B31F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.98

#A1B31F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1B31F

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1B31F	#FFFFFF	#000000	##000000
##A1B31F	1.00	2.34	8.98	8.98
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.98	21.00	1.00	1.00
##000000	8.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0A900

Deuteranopia (green-blind)

#BEAA2F

Tritanopia (blue-blind)

#ACA899

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #a1b31f;
/* rgb */ color: rgb(161, 179, 31);
/* oklch */ color: oklch(72.8% 0.160 117.0);

Tailwind

colors: {
  custom: {
    50: '#c1c96a',
    500: '#a1b31f',
    950: '#000000',
  },
}

SCSS

$custom: #a1b31f;
$custom-light: #c1c96a;
$custom-dark: #000000;

JSON

{
  "hex": "#a1b31f",
  "rgb": {
    "r": 161,
    "g": 179,
    "b": 31
  },
  "hsl": {
    "h": 67.297,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.7282,
    "c": 0.15973,
    "h": 117
  },
  "luminance": 0.39916
}

Semantic roles & 50–950 ramp

primary

#A1B31F

secondary

#7064CA

accent

#3BED50

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A1B31F

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

Preview Lab → · Contrast checker → · Palette generator →