#B1B31A#B1B31A

#B1B31A is a light, vivid yellow. Relative luminance 0.417; OKLCH L 74.1% C 0.157 H 110.5°. Best body text is #000000 at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#B1B31A
RGB	rgb(177, 179, 26)
HSL	hsl(61, 75%, 40%)
HSV	hsv(61, 85%, 70%)
CMYK	cmyk(1.1%, 0%, 85.5%, 29.8%)
CIE-LAB	lab(70.64, -16.98, 68.48)
CIE-LCH	lch(70.64, 70.56, 103.93°)
OKLab	oklab(74.11% -0.0549 0.1467)
OKLCH	oklch(74.11% 0.157 110.5)
XYZ	xyz(34.4394, 41.6629, 7.2047)
Luminance	0.4166 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B31A #1C1AB3

analogous

#B3681A #B1B31A #65B31A

triadic

#B1B31A #1AB1B3 #B31AB1

tetradic

#B1B31A #1AB368 #1C1AB3 #B31A65

square

#B1B31A #1AB368 #1C1AB3 #B31A65

split-complementary

#B1B31A #1A65B3 #681AB3

monochromatic

#47480A #7C7E12 #B1B31A #DEE02A #E6E860

Accessibility & contrast

On white

2.25

#B1B31A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.33

#B1B31A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B31A

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B31A	#FFFFFF	#000000	##000000
##B1B31A	1.00	2.25	9.33	9.33
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.33	21.00	1.00	1.00
##000000	9.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AB00

Deuteranopia (green-blind)

#C3AF2B

Tritanopia (blue-blind)

#BEA799

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #b1b31a;
/* rgb */ color: rgb(177, 179, 26);
/* oklch */ color: oklch(74.1% 0.157 110.5);

Tailwind

colors: {
  custom: {
    50: '#cdc969',
    500: '#b1b31a',
    950: '#000000',
  },
}

SCSS

$custom: #b1b31a;
$custom-light: #cdc969;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b31a",
  "rgb": {
    "r": 177,
    "g": 179,
    "b": 26
  },
  "hsl": {
    "h": 60.784,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.74107,
    "c": 0.15666,
    "h": 110.5
  },
  "luminance": 0.41662
}

Semantic roles & 50–950 ramp

primary

#B1B31A

secondary

#5E5DCC

accent

#37F139

background

#FDFCF6

surface

#FAF8EC

border

#D3D1C7

text

#141307

muted

#83827A

Preview Lab

Preview with #B1B31A

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

Preview Lab → · Contrast checker → · Palette generator →