#B5B737#B5B737

#B5B737 is a light, vivid yellow. Relative luminance 0.440; OKLCH L 75.5% C 0.146 H 110.3°. Best body text is #000000 at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#B5B737
RGB	rgb(181, 183, 55)
HSL	hsl(61, 54%, 47%)
HSV	hsv(61, 70%, 72%)
CMYK	cmyk(1.1%, 0%, 69.9%, 28.2%)
CIE-LAB	lab(72.21, -16.17, 61.34)
CIE-LCH	lch(72.21, 63.44, 104.77°)
OKLab	oklab(75.48% -0.0505 0.1365)
OKLCH	oklch(75.48% 0.146 110.3)
XYZ	xyz(36.6804, 43.9676, 10.1681)
Luminance	0.4397 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5B737 #3937B7

analogous

#B77937 #B5B737 #75B737

triadic

#B5B737 #37B5B7 #B737B5

tetradic

#B5B737 #37B779 #3937B7 #B73775

square

#B5B737 #37B779 #3937B7 #B73775

split-complementary

#B5B737 #3775B7 #7937B7

monochromatic

#58591B #868829 #B5B737 #CDCE5D #DBDC8C

Accessibility & contrast

On white

2.14

#B5B737 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.79

#B5B737 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5B737

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5B737	#FFFFFF	#000000	##000000
##B5B737	1.00	2.14	9.79	9.79
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.79	21.00	1.00	1.00
##000000	9.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AF22

Deuteranopia (green-blind)

#C7B340

Tritanopia (blue-blind)

#C2AC9E

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #b5b737;
/* rgb */ color: rgb(181, 183, 55);
/* oklch */ color: oklch(75.5% 0.146 110.3);

Tailwind

colors: {
  custom: {
    50: '#cfcc76',
    500: '#b5b737',
    950: '#000000',
  },
}

SCSS

$custom: #b5b737;
$custom-light: #cfcc76;
$custom-dark: #000000;

JSON

{
  "hex": "#b5b737",
  "rgb": {
    "r": 181,
    "g": 183,
    "b": 55
  },
  "hsl": {
    "h": 60.938,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.75484,
    "c": 0.14552,
    "h": 110.3
  },
  "luminance": 0.43967
}

Semantic roles & 50–950 ramp

primary

#B5B737

secondary

#8483C7

accent

#4BDD4D

background

#FDFCF7

surface

#FAF8ED

border

#D3D1C8

text

#141309

muted

#83827B

Preview Lab

Preview with #B5B737

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

Preview Lab → · Contrast checker → · Palette generator →