#A3B31F#A3B31F

#A3B31F is a light, vivid yellow. Relative luminance 0.401; OKLCH L 73.0% C 0.159 H 116.2°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#A3B31F
RGB	rgb(163, 179, 31)
HSL	hsl(66, 70%, 41%)
HSV	hsv(66, 83%, 70%)
CMYK	cmyk(8.9%, 0%, 82.7%, 29.8%)
CIE-LAB	lab(69.56, -22.88, 65.96)
CIE-LCH	lch(69.56, 69.81, 109.13°)
OKLab	oklab(72.98% -0.0701 0.1427)
OKLCH	oklch(72.98% 0.159 116.2)
XYZ	xyz(31.4726, 40.1261, 7.3832)
Luminance	0.4013 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3B31F #2F1FB3

analogous

#B3791F #A3B31F #59B31F

triadic

#A3B31F #1FA3B3 #B31FA3

tetradic

#A3B31F #1FB379 #2F1FB3 #B31F59

square

#A3B31F #1FB379 #2F1FB3 #B31F59

split-complementary

#A3B31F #1F59B3 #791FB3

monochromatic

#444B0D #737F16 #A3B31F #CADC33 #D7E568

Accessibility & contrast

On white

2.33

#A3B31F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#A3B31F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3B31F

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3B31F	#FFFFFF	#000000	##000000
##A3B31F	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0A900

Deuteranopia (green-blind)

#BFAB2F

Tritanopia (blue-blind)

#AEA899

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #a3b31f;
/* rgb */ color: rgb(163, 179, 31);
/* oklch */ color: oklch(73.0% 0.159 116.2);

Tailwind

colors: {
  custom: {
    50: '#c2c96a',
    500: '#a3b31f',
    950: '#000000',
  },
}

SCSS

$custom: #a3b31f;
$custom-light: #c2c96a;
$custom-dark: #000000;

JSON

{
  "hex": "#a3b31f",
  "rgb": {
    "r": 163,
    "g": 179,
    "b": 31
  },
  "hsl": {
    "h": 66.486,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.72977,
    "c": 0.15901,
    "h": 116.2
  },
  "luminance": 0.40126
}

Semantic roles & 50–950 ramp

primary

#A3B31F

secondary

#6F64CA

accent

#3BED4E

background

#FCFCF6

surface

#F8F8EC

border

#D1D1C7

text

#131307

muted

#82827A

Preview Lab

Preview with #A3B31F

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

Preview Lab → · Contrast checker → · Palette generator →