#B1B72B#B1B72B

#B1B72B is a light, vivid yellow. Relative luminance 0.434; OKLCH L 75.1% C 0.153 H 112.1°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#B1B72B
RGB	rgb(177, 183, 43)
HSL	hsl(63, 62%, 44%)
HSV	hsv(63, 77%, 72%)
CMYK	cmyk(3.3%, 0%, 76.5%, 28.2%)
CIE-LAB	lab(71.82, -18.44, 64.97)
CIE-LCH	lch(71.82, 67.54, 105.84°)
OKLab	oklab(75.07% -0.0577 0.1422)
OKLCH	oklch(75.07% 0.153 112.1)
XYZ	xyz(35.5022, 43.3894, 8.7899)
Luminance	0.4339 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B72B #312BB7

analogous

#B7772B #B1B72B #6BB72B

triadic

#B1B72B #2BB1B7 #B72BB1

tetradic

#B1B72B #2BB777 #312BB7 #B72B6B

square

#B1B72B #2BB777 #312BB7 #B72B6B

split-complementary

#B1B72B #2B6BB7 #772BB7

monochromatic

#515414 #81851F #B1B72B #CFD54B #DCE07C

Accessibility & contrast

On white

2.17

#B1B72B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#B1B72B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B72B

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B72B	#FFFFFF	#000000	##000000
##B1B72B	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AE03

Deuteranopia (green-blind)

#C6B237

Tritanopia (blue-blind)

#BDAB9D

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #b1b72b;
/* rgb */ color: rgb(177, 183, 43);
/* oklch */ color: oklch(75.1% 0.153 112.1);

Tailwind

colors: {
  custom: {
    50: '#cccc70',
    500: '#b1b72b',
    950: '#000000',
  },
}

SCSS

$custom: #b1b72b;
$custom-light: #cccc70;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b72b",
  "rgb": {
    "r": 177,
    "g": 183,
    "b": 43
  },
  "hsl": {
    "h": 62.571,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.75074,
    "c": 0.15343,
    "h": 112.1
  },
  "luminance": 0.43389
}

Semantic roles & 50–950 ramp

primary

#B1B72B

secondary

#7975C9

accent

#43E54A

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141308

muted

#83827B

Preview Lab

Preview with #B1B72B

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

Preview Lab → · Contrast checker → · Palette generator →