#B1BF29#B1BF29

#B1BF29 is a light, vivid yellow. Relative luminance 0.468; OKLCH L 76.9% C 0.163 H 115.1°. Best body text is #000000 at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#B1BF29
RGB	rgb(177, 191, 41)
HSL	hsl(66, 65%, 45%)
HSV	hsv(66, 79%, 75%)
CMYK	cmyk(7.3%, 0%, 78.5%, 25.1%)
CIE-LAB	lab(74.04, -22.49, 67.59)
CIE-LCH	lch(74.04, 71.23, 108.41°)
OKLab	oklab(76.85% -0.0691 0.1474)
OKLCH	oklch(76.85% 0.163 115.1)
XYZ	xyz(37.1636, 46.7695, 9.1671)
Luminance	0.4677 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BF29 #3729BF

analogous

#BF8229 #B1BF29 #66BF29

triadic

#B1BF29 #29B1BF #BF29B1

tetradic

#B1BF29 #29BF82 #3729BF #BF2966

square

#B1BF29 #29BF82 #3729BF #BF2966

split-complementary

#B1BF29 #2966BF #8229BF

monochromatic

#545A13 #828D1E #B1BF29 #CCD94D #DAE47F

Accessibility & contrast

On white

2.03

#B1BF29 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.35

#B1BF29 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BF29

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BF29	#FFFFFF	#000000	##000000
##B1BF29	1.00	2.03	10.35	10.35
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.35	21.00	1.00	1.00
##000000	10.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB500

Deuteranopia (green-blind)

#CCB737

Tritanopia (blue-blind)

#BDB4A4

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #b1bf29;
/* rgb */ color: rgb(177, 191, 41);
/* oklch */ color: oklch(76.9% 0.163 115.1);

Tailwind

colors: {
  custom: {
    50: '#ccd270',
    500: '#b1bf29',
    950: '#000000',
  },
}

SCSS

$custom: #b1bf29;
$custom-light: #ccd270;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bf29",
  "rgb": {
    "r": 177,
    "g": 191,
    "b": 41
  },
  "hsl": {
    "h": 65.6,
    "s": 64.655,
    "l": 45.49
  },
  "oklch": {
    "l": 0.76853,
    "c": 0.16277,
    "h": 115.1
  },
  "luminance": 0.46769
}

Semantic roles & 50–950 ramp

primary

#B1BF29

secondary

#8078CC

accent

#40E850

background

#FDFCF7

surface

#FAF9ED

border

#D3D2C8

text

#141408

muted

#83827B

Preview Lab

Preview with #B1BF29

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

Preview Lab → · Contrast checker → · Palette generator →