#B4C640#B4C640

#B4C640 is a light, vivid yellow. Relative luminance 0.505; OKLCH L 78.8% C 0.156 H 116.7°. Best body text is #000000 at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#B4C640
RGB	rgb(180, 198, 64)
HSL	hsl(68, 54%, 51%)
HSV	hsv(68, 68%, 78%)
CMYK	cmyk(9.1%, 0%, 67.7%, 22.4%)
CIE-LAB	lab(76.35, -23.55, 62.06)
CIE-LCH	lch(76.35, 66.38, 110.78°)
OKLab	oklab(78.81% -0.0702 0.1395)
OKLCH	oklch(78.81% 0.156 116.7)
XYZ	xyz(39.9428, 50.4621, 12.4855)
Luminance	0.5046 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4C640 #5240C6

analogous

#C69540 #B4C640 #71C640

triadic

#B4C640 #40B4C6 #C640B4

tetradic

#B4C640 #40C695 #5240C6 #C64071

square

#B4C640 #40C695 #5240C6 #C64071

split-complementary

#B4C640 #4071C6 #9540C6

monochromatic

#616C20 #8C9B2E #B4C640 #C7D46F #D9E29E

Accessibility & contrast

On white

1.89

#B4C640 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.09

#B4C640 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4C640

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4C640	#FFFFFF	#000000	##000000
##B4C640	1.00	1.89	11.09	11.09
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.09	21.00	1.00	1.00
##000000	11.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BC2C

Deuteranopia (green-blind)

#D2BD4A

Tritanopia (blue-blind)

#BFBBAB

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #b4c640;
/* rgb */ color: rgb(180, 198, 64);
/* oklch */ color: oklch(78.8% 0.156 116.7);

Tailwind

colors: {
  custom: {
    50: '#ced77c',
    500: '#b4c640',
    950: '#000000',
  },
}

SCSS

$custom: #b4c640;
$custom-light: #ced77c;
$custom-dark: #000000;

JSON

{
  "hex": "#b4c640",
  "rgb": {
    "r": 180,
    "g": 198,
    "b": 64
  },
  "hsl": {
    "h": 68.06,
    "s": 54.032,
    "l": 51.373
  },
  "oklch": {
    "l": 0.78805,
    "c": 0.15616,
    "h": 116.7
  },
  "luminance": 0.50462
}

Semantic roles & 50–950 ramp

primary

#B4C640

secondary

#3E3575

accent

#4ADD5E

background

#FEFEFB

surface

#FBFBF2

border

#D4D4CC

text

#14140A

muted

#83837D

Preview Lab

Preview with #B4C640

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

Preview Lab → · Contrast checker → · Palette generator →