#B5C731#B5C731

#B5C731 is a light, vivid yellow. Relative luminance 0.509; OKLCH L 79.0% C 0.166 H 116.4°. Best body text is #000000 at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#B5C731
RGB	rgb(181, 199, 49)
HSL	hsl(67, 60%, 49%)
HSV	hsv(67, 75%, 78%)
CMYK	cmyk(9%, 0%, 75.4%, 22%)
CIE-LAB	lab(76.61, -24.40, 67.62)
CIE-LCH	lch(76.61, 71.88, 109.84°)
OKLab	oklab(79.01% -0.0739 0.1487)
OKLCH	oklch(79.01% 0.166 116.4)
XYZ	xyz(40.0349, 50.8929, 10.6194)
Luminance	0.5089 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5C731 #4331C7

analogous

#C78E31 #B5C731 #6AC731

triadic

#B5C731 #31B5C7 #C731B5

tetradic

#B5C731 #31C78E #4331C7 #C7316A

square

#B5C731 #31C78E #4331C7 #C7316A

split-complementary

#B5C731 #316AC7 #8E31C7

monochromatic

#5C6519 #889625 #B5C731 #C9D75E #D9E38F

Accessibility & contrast

On white

1.88

#B5C731 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.18

#B5C731 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5C731

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5C731	#FFFFFF	#000000	##000000
##B5C731	1.00	1.88	11.18	11.18
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.18	21.00	1.00	1.00
##000000	11.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BC0A

Deuteranopia (green-blind)

#D3BE3E

Tritanopia (blue-blind)

#C1BCAB

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #b5c731;
/* rgb */ color: rgb(181, 199, 49);
/* oklch */ color: oklch(79.0% 0.166 116.4);

Tailwind

colors: {
  custom: {
    50: '#cfd775',
    500: '#b5c731',
    950: '#000000',
  },
}

SCSS

$custom: #b5c731;
$custom-light: #cfd775;
$custom-dark: #000000;

JSON

{
  "hex": "#b5c731",
  "rgb": {
    "r": 181,
    "g": 199,
    "b": 49
  },
  "hsl": {
    "h": 67.2,
    "s": 60.484,
    "l": 48.627
  },
  "oklch": {
    "l": 0.79005,
    "c": 0.16606,
    "h": 116.4
  },
  "luminance": 0.50892
}

Semantic roles & 50–950 ramp

primary

#B5C731

secondary

#352D6F

accent

#44E457

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141409

muted

#83837D

Preview Lab

Preview with #B5C731

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

Preview Lab → · Contrast checker → · Palette generator →