#B1B828#B1B828

#B1B828 is a light, vivid yellow. Relative luminance 0.438; OKLCH L 75.3% C 0.156 H 112.5°. Best body text is #000000 at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#B1B828
RGB	rgb(177, 184, 40)
HSL	hsl(63, 64%, 44%)
HSV	hsv(63, 78%, 72%)
CMYK	cmyk(3.8%, 0%, 78.3%, 27.8%)
CIE-LAB	lab(72.08, -19.06, 66.12)
CIE-LCH	lch(72.08, 68.82, 106.08°)
OKLab	oklab(75.28% -0.0597 0.1441)
OKLCH	oklch(75.28% 0.156 112.5)
XYZ	xyz(35.6562, 43.7822, 8.5796)
Luminance	0.4378 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B828 #2F28B8

analogous

#B87728 #B1B828 #69B828

triadic

#B1B828 #28B1B8 #B828B1

tetradic

#B1B828 #28B877 #2F28B8 #B82869

square

#B1B828 #28B877 #2F28B8 #B82869

split-complementary

#B1B828 #2869B8 #7728B8

monochromatic

#505312 #81861D #B1B828 #D0D746 #DDE279

Accessibility & contrast

On white

2.15

#B1B828 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.76

#B1B828 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B828

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B828	#FFFFFF	#000000	##000000
##B1B828	1.00	2.15	9.76	9.76
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.76	21.00	1.00	1.00
##000000	9.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6AF00

Deuteranopia (green-blind)

#C7B235

Tritanopia (blue-blind)

#BDAC9E

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #b1b828;
/* rgb */ color: rgb(177, 184, 40);
/* oklch */ color: oklch(75.3% 0.156 112.5);

Tailwind

colors: {
  custom: {
    50: '#cccd6f',
    500: '#b1b828',
    950: '#000000',
  },
}

SCSS

$custom: #b1b828;
$custom-light: #cccd6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b828",
  "rgb": {
    "r": 177,
    "g": 184,
    "b": 40
  },
  "hsl": {
    "h": 62.917,
    "s": 64.286,
    "l": 43.922
  },
  "oklch": {
    "l": 0.75281,
    "c": 0.15594,
    "h": 112.5
  },
  "luminance": 0.43781
}

Semantic roles & 50–950 ramp

primary

#B1B828

secondary

#7672CA

accent

#41E749

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141308

muted

#83827B

Preview Lab

Preview with #B1B828

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

Preview Lab → · Contrast checker → · Palette generator →