#B4C538#B4C538

#B4C538 is a light, vivid yellow. Relative luminance 0.499; OKLCH L 78.5% C 0.160 H 116.2°. Best body text is #000000 at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#B4C538
RGB	rgb(180, 197, 56)
HSL	hsl(67, 56%, 50%)
HSV	hsv(67, 72%, 77%)
CMYK	cmyk(8.6%, 0%, 71.6%, 22.7%)
CIE-LAB	lab(76.02, -23.51, 64.68)
CIE-LCH	lch(76.02, 68.82, 109.97°)
OKLab	oklab(78.52% -0.0708 0.1437)
OKLCH	oklch(78.52% 0.16 116.2)
XYZ	xyz(39.5034, 49.9219, 11.2955)
Luminance	0.4992 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4C538 #4938C5

analogous

#C59038 #B4C538 #6EC538

triadic

#B4C538 #38B4C5 #C538B4

tetradic

#B4C538 #38C590 #4938C5 #C5386E

square

#B4C538 #38C590 #4938C5 #C5386E

split-complementary

#B4C538 #386EC5 #9038C5

monochromatic

#5D661D #88952A #B4C538 #C7D467 #D8E196

Accessibility & contrast

On white

1.91

#B4C538 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.98

#B4C538 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4C538

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4C538	#FFFFFF	#000000	##000000
##B4C538	1.00	1.91	10.98	10.98
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.98	21.00	1.00	1.00
##000000	10.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BB1E

Deuteranopia (green-blind)

#D1BC43

Tritanopia (blue-blind)

#BFBAAA

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #b4c538;
/* rgb */ color: rgb(180, 197, 56);
/* oklch */ color: oklch(78.5% 0.160 116.2);

Tailwind

colors: {
  custom: {
    50: '#ced678',
    500: '#b4c538',
    950: '#000000',
  },
}

SCSS

$custom: #b4c538;
$custom-light: #ced678;
$custom-dark: #000000;

JSON

{
  "hex": "#b4c538",
  "rgb": {
    "r": 180,
    "g": 197,
    "b": 56
  },
  "hsl": {
    "h": 67.234,
    "s": 55.731,
    "l": 49.608
  },
  "oklch": {
    "l": 0.78523,
    "c": 0.16021,
    "h": 116.2
  },
  "luminance": 0.49921
}

Semantic roles & 50–950 ramp

primary

#B4C538

secondary

#948CCD

accent

#49DF5B

background

#FDFDF7

surface

#FAFAEE

border

#D3D3C9

text

#141409

muted

#83837B

Preview Lab

Preview with #B4C538

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

Preview Lab → · Contrast checker → · Palette generator →