#B1BF33#B1BF33

#B1BF33 is a light, vivid yellow. Relative luminance 0.468; OKLCH L 76.9% C 0.158 H 115.2°. Best body text is #000000 at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#B1BF33
RGB	rgb(177, 191, 51)
HSL	hsl(66, 58%, 47%)
HSV	hsv(66, 73%, 75%)
CMYK	cmyk(7.3%, 0%, 73.3%, 25.1%)
CIE-LAB	lab(74.09, -22.07, 64.48)
CIE-LCH	lch(74.09, 68.15, 108.89°)
OKLab	oklab(76.91% -0.0671 0.1425)
OKLCH	oklch(76.91% 0.158 115.2)
XYZ	xyz(37.3608, 46.8484, 10.2058)
Luminance	0.4685 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1BF33 #4133BF

analogous

#BF8733 #B1BF33 #6BBF33

triadic

#B1BF33 #33B1BF #BF33B1

tetradic

#B1BF33 #33BF87 #4133BF #BF336B

square

#B1BF33 #33BF87 #4133BF #BF336B

split-complementary

#B1BF33 #336BBF #8733BF

monochromatic

#575E19 #848F26 #B1BF33 #C7D35C #D8E08C

Accessibility & contrast

On white

2.03

#B1BF33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.37

#B1BF33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1BF33

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1BF33	#FFFFFF	#000000	##000000
##B1BF33	1.00	2.03	10.37	10.37
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.37	21.00	1.00	1.00
##000000	10.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB516

Deuteranopia (green-blind)

#CCB73F

Tritanopia (blue-blind)

#BDB4A4

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #b1bf33;
/* rgb */ color: rgb(177, 191, 51);
/* oklch */ color: oklch(76.9% 0.158 115.2);

Tailwind

colors: {
  custom: {
    50: '#ccd275',
    500: '#b1bf33',
    950: '#000000',
  },
}

SCSS

$custom: #b1bf33;
$custom-light: #ccd275;
$custom-dark: #000000;

JSON

{
  "hex": "#b1bf33",
  "rgb": {
    "r": 177,
    "g": 191,
    "b": 51
  },
  "hsl": {
    "h": 66,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.7691,
    "c": 0.15753,
    "h": 115.2
  },
  "luminance": 0.46848
}

Semantic roles & 50–950 ramp

primary

#B1BF33

secondary

#8A83CB

accent

#47E156

background

#FCFCF7

surface

#F9F9ED

border

#D2D2C8

text

#141409

muted

#82827B

Preview Lab

Preview with #B1BF33

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

Preview Lab → · Contrast checker → · Palette generator →