#B4C638#B4C638

#B4C638 is a light, vivid yellow. Relative luminance 0.504; OKLCH L 78.7% C 0.161 H 116.6°. Best body text is #000000 at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#B4C638
RGB	rgb(180, 198, 56)
HSL	hsl(68, 56%, 50%)
HSV	hsv(68, 72%, 78%)
CMYK	cmyk(9.1%, 0%, 71.7%, 22.4%)
CIE-LAB	lab(76.30, -23.99, 64.95)
CIE-LCH	lch(76.30, 69.24, 110.27°)
OKLab	oklab(78.75% -0.0722 0.1443)
OKLCH	oklch(78.75% 0.161 116.6)
XYZ	xyz(39.7313, 50.3775, 11.3714)
Luminance	0.5038 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4C638 #4A38C6

analogous

#C69138 #B4C638 #6DC638

triadic

#B4C638 #38B4C6 #C638B4

tetradic

#B4C638 #38C691 #4A38C6 #C6386D

square

#B4C638 #38C691 #4A38C6 #C6386D

split-complementary

#B4C638 #386DC6 #9138C6

monochromatic

#5D671D #89962B #B4C638 #C6D467 #D8E297

Accessibility & contrast

On white

1.90

#B4C638 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.08

#B4C638 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4C638

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4C638	#FFFFFF	#000000	##000000
##B4C638	1.00	1.90	11.08	11.08
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.08	21.00	1.00	1.00
##000000	11.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BC1E

Deuteranopia (green-blind)

#D2BD44

Tritanopia (blue-blind)

#BFBBAA

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #b4c638;
/* rgb */ color: rgb(180, 198, 56);
/* oklch */ color: oklch(78.7% 0.161 116.6);

Tailwind

colors: {
  custom: {
    50: '#ced778',
    500: '#b4c638',
    950: '#000000',
  },
}

SCSS

$custom: #b4c638;
$custom-light: #ced778;
$custom-dark: #000000;

JSON

{
  "hex": "#b4c638",
  "rgb": {
    "r": 180,
    "g": 198,
    "b": 56
  },
  "hsl": {
    "h": 67.606,
    "s": 55.906,
    "l": 49.804
  },
  "oklch": {
    "l": 0.78747,
    "c": 0.16132,
    "h": 116.6
  },
  "luminance": 0.50377
}

Semantic roles & 50–950 ramp

primary

#B4C638

secondary

#393171

accent

#49DF5C

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#14140A

muted

#83837D

Preview Lab

Preview with #B4C638

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

Preview Lab → · Contrast checker → · Palette generator →