#B5CF31#B5CF31

#B5CF31 is a light, vivid yellow. Relative luminance 0.547; OKLCH L 80.8% C 0.175 H 118.9°. Best body text is #000000 at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#B5CF31
RGB	rgb(181, 207, 49)
HSL	hsl(70, 62%, 50%)
HSV	hsv(70, 76%, 81%)
CMYK	cmyk(12.6%, 0%, 76.3%, 18.8%)
CIE-LAB	lab(78.85, -28.23, 69.69)
CIE-LCH	lch(78.85, 75.19, 112.05°)
OKLab	oklab(80.81% -0.0845 0.1531)
OKLCH	oklch(80.81% 0.175 118.9)
XYZ	xyz(41.9242, 54.6715, 11.2492)
Luminance	0.5467 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5CF31 #4B31CF

analogous

#CF9A31 #B5CF31 #66CF31

triadic

#B5CF31 #31B5CF #CF31B5

tetradic

#B5CF31 #31CF9A #4B31CF #CF3166

square

#B5CF31 #31CF9A #4B31CF #CF3166

split-complementary

#B5CF31 #3166CF #9A31CF

monochromatic

#5F6C19 #8A9E25 #B5CF31 #C7DB63 #D9E694

Accessibility & contrast

On white

1.76

#B5CF31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.93

#B5CF31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5CF31

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5CF31	#FFFFFF	#000000	##000000
##B5CF31	1.00	1.76	11.93	11.93
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.93	21.00	1.00	1.00
##000000	11.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC302

Deuteranopia (green-blind)

#DAC440

Tritanopia (blue-blind)

#C0C4B2

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #b5cf31;
/* rgb */ color: rgb(181, 207, 49);
/* oklch */ color: oklch(80.8% 0.175 118.9);

Tailwind

colors: {
  custom: {
    50: '#cfdd76',
    500: '#b5cf31',
    950: '#000000',
  },
}

SCSS

$custom: #b5cf31;
$custom-light: #cfdd76;
$custom-dark: #000000;

JSON

{
  "hex": "#b5cf31",
  "rgb": {
    "r": 181,
    "g": 207,
    "b": 49
  },
  "hsl": {
    "h": 69.873,
    "s": 62.205,
    "l": 50.196
  },
  "oklch": {
    "l": 0.80805,
    "c": 0.17486,
    "h": 118.9
  },
  "luminance": 0.54671
}

Semantic roles & 50–950 ramp

primary

#B5CF31

secondary

#3A2E76

accent

#43E55D

background

#FEFEFB

surface

#FBFCF1

border

#D4D5CB

text

#141509

muted

#83847D

Preview Lab

Preview with #B5CF31

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

Preview Lab → · Contrast checker → · Palette generator →