#B1B831#B1B831

#B1B831 is a light, vivid yellow. Relative luminance 0.439; OKLCH L 75.3% C 0.151 H 112.5°. Best body text is #000000 at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#B1B831
RGB	rgb(177, 184, 49)
HSL	hsl(63, 58%, 46%)
HSV	hsv(63, 73%, 72%)
CMYK	cmyk(3.8%, 0%, 73.4%, 27.8%)
CIE-LAB	lab(72.13, -18.68, 63.30)
CIE-LCH	lch(72.13, 66.00, 106.44°)
OKLab	oklab(75.33% -0.0579 0.1397)
OKLCH	oklch(75.33% 0.151 112.5)
XYZ	xyz(35.8275, 43.8507, 9.4819)
Luminance	0.4385 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1B831 #3831B8

analogous

#B87B31 #B1B831 #6DB831

triadic

#B1B831 #31B1B8 #B831B1

tetradic

#B1B831 #31B87B #3831B8 #B8316D

square

#B1B831 #31B87B #3831B8 #B8316D

split-complementary

#B1B831 #316DB8 #7B31B8

monochromatic

#545717 #838824 #B1B831 #CBD255 #DADE85

Accessibility & contrast

On white

2.15

#B1B831 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.77

#B1B831 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1B831

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1B831	#FFFFFF	#000000	##000000
##B1B831	1.00	2.15	9.77	9.77
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.77	21.00	1.00	1.00
##000000	9.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6AF15

Deuteranopia (green-blind)

#C6B23C

Tritanopia (blue-blind)

#BDAD9E

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #b1b831;
/* rgb */ color: rgb(177, 184, 49);
/* oklch */ color: oklch(75.3% 0.151 112.5);

Tailwind

colors: {
  custom: {
    50: '#cccd73',
    500: '#b1b831',
    950: '#000000',
  },
}

SCSS

$custom: #b1b831;
$custom-light: #cccd73;
$custom-dark: #000000;

JSON

{
  "hex": "#b1b831",
  "rgb": {
    "r": 177,
    "g": 184,
    "b": 49
  },
  "hsl": {
    "h": 63.111,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.75332,
    "c": 0.15119,
    "h": 112.5
  },
  "luminance": 0.4385
}

Semantic roles & 50–950 ramp

primary

#B1B831

secondary

#817DC8

accent

#47E14F

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141309

muted

#83827B

Preview Lab

Preview with #B1B831

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

Preview Lab → · Contrast checker → · Palette generator →