#B4C731#B4C731

#B4C731 is a light, vivid yellow. Relative luminance 0.508; OKLCH L 78.9% C 0.166 H 116.8°. Best body text is #000000 at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#B4C731
RGB	rgb(180, 199, 49)
HSL	hsl(68, 60%, 49%)
HSV	hsv(68, 75%, 78%)
CMYK	cmyk(9.5%, 0%, 75.4%, 22%)
CIE-LAB	lab(76.54, -24.81, 67.52)
CIE-LCH	lch(76.54, 71.94, 110.18°)
OKLab	oklab(78.93% -0.075 0.1485)
OKLCH	oklch(78.93% 0.166 116.8)
XYZ	xyz(39.8012, 50.7724, 10.6085)
Luminance	0.5077 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4C731 #4431C7

analogous

#C78F31 #B4C731 #69C731

triadic

#B4C731 #31B4C7 #C731B4

tetradic

#B4C731 #31C78F #4431C7 #C73169

square

#B4C731 #31C78F #4431C7 #C73169

split-complementary

#B4C731 #3169C7 #8F31C7

monochromatic

#5B6519 #889625 #B4C731 #C8D75E #D9E38F

Accessibility & contrast

On white

1.88

#B4C731 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.15

#B4C731 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4C731

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4C731	#FFFFFF	#000000	##000000
##B4C731	1.00	1.88	11.15	11.15
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.15	21.00	1.00	1.00
##000000	11.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BC0A

Deuteranopia (green-blind)

#D3BE3E

Tritanopia (blue-blind)

#BFBCAB

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #b4c731;
/* rgb */ color: rgb(180, 199, 49);
/* oklch */ color: oklch(78.9% 0.166 116.8);

Tailwind

colors: {
  custom: {
    50: '#ced775',
    500: '#b4c731',
    950: '#000000',
  },
}

SCSS

$custom: #b4c731;
$custom-light: #ced775;
$custom-dark: #000000;

JSON

{
  "hex": "#b4c731",
  "rgb": {
    "r": 180,
    "g": 199,
    "b": 49
  },
  "hsl": {
    "h": 67.6,
    "s": 60.484,
    "l": 48.627
  },
  "oklch": {
    "l": 0.78928,
    "c": 0.1664,
    "h": 116.8
  },
  "luminance": 0.50772
}

Semantic roles & 50–950 ramp

primary

#B4C731

secondary

#352D6F

accent

#44E458

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141409

muted

#83837D

Preview Lab

Preview with #B4C731

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

Preview Lab → · Contrast checker → · Palette generator →