#B5B731#B5B731

#B5B731 is a light, vivid yellow. Relative luminance 0.439; OKLCH L 75.4% C 0.149 H 110.4°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#B5B731
RGB	rgb(181, 183, 49)
HSL	hsl(61, 58%, 45%)
HSV	hsv(61, 73%, 72%)
CMYK	cmyk(1.1%, 0%, 73.2%, 28.2%)
CIE-LAB	lab(72.17, -16.47, 63.45)
CIE-LCH	lch(72.17, 65.55, 104.55°)
OKLab	oklab(75.44% -0.0519 0.1399)
OKLCH	oklch(75.44% 0.149 110.4)
XYZ	xyz(36.5452, 43.9135, 9.4562)
Luminance	0.4391 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5B731 #3331B7

analogous

#B77631 #B5B731 #72B731

triadic

#B5B731 #31B5B7 #B731B5

tetradic

#B5B731 #31B776 #3331B7 #B73172

square

#B5B731 #31B776 #3331B7 #B73172

split-complementary

#B5B731 #3172B7 #7631B7

monochromatic

#565617 #858724 #B5B731 #CFD154 #DDDE84

Accessibility & contrast

On white

2.15

#B5B731 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#B5B731 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5B731

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5B731	#FFFFFF	#000000	##000000
##B5B731	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6AF15

Deuteranopia (green-blind)

#C7B33C

Tritanopia (blue-blind)

#C2AB9D

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #b5b731;
/* rgb */ color: rgb(181, 183, 49);
/* oklch */ color: oklch(75.4% 0.149 110.4);

Tailwind

colors: {
  custom: {
    50: '#cfcc73',
    500: '#b5b731',
    950: '#000000',
  },
}

SCSS

$custom: #b5b731;
$custom-light: #cfcc73;
$custom-dark: #000000;

JSON

{
  "hex": "#b5b731",
  "rgb": {
    "r": 181,
    "g": 183,
    "b": 49
  },
  "hsl": {
    "h": 60.896,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.75444,
    "c": 0.14919,
    "h": 110.4
  },
  "luminance": 0.43912
}

Semantic roles & 50–950 ramp

primary

#B5B731

secondary

#7D7CC8

accent

#47E149

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141309

muted

#83827B

Preview Lab

Preview with #B5B731

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

Preview Lab → · Contrast checker → · Palette generator →