#B4D539#B4D539

#B4D539 is a very light, vivid yellow-green. Relative luminance 0.576; OKLCH L 82.1% C 0.178 H 121.1°. Best body text is #000000 at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#B4D539
RGB	rgb(180, 213, 57)
HSL	hsl(73, 65%, 53%)
HSV	hsv(73, 73%, 84%)
CMYK	cmyk(15.5%, 0%, 73.2%, 16.5%)
CIE-LAB	lab(80.51, -31.09, 68.67)
CIE-LCH	lch(80.51, 75.38, 114.36°)
OKLab	oklab(82.14% -0.0917 0.1523)
OKLCH	oklch(82.14% 0.178 121.1)
XYZ	xyz(43.3559, 57.5873, 12.7015)
Luminance	0.5759 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4D539 #5A39D5

analogous

#D5A839 #B4D539 #66D539

triadic

#B4D539 #39B4D5 #D539B4

tetradic

#B4D539 #39D5A8 #5A39D5 #D53966

square

#B4D539 #39D5A8 #5A39D5 #D53966

split-complementary

#B4D539 #3966D5 #A839D5

monochromatic

#657A1A #90AC25 #B4D539 #C7E06B #DAEA9E

Accessibility & contrast

On white

1.68

#B4D539 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.52

#B4D539 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4D539

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4D539	#FFFFFF	#000000	##000000
##B4D539	1.00	1.68	12.52	12.52
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.52	21.00	1.00	1.00
##000000	12.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C818

Deuteranopia (green-blind)

#DEC847

Tritanopia (blue-blind)

#BECAB7

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #b4d539;
/* rgb */ color: rgb(180, 213, 57);
/* oklch */ color: oklch(82.1% 0.178 121.1);

Tailwind

colors: {
  custom: {
    50: '#cee27a',
    500: '#b4d539',
    950: '#000000',
  },
}

SCSS

$custom: #b4d539;
$custom-light: #cee27a;
$custom-dark: #000000;

JSON

{
  "hex": "#b4d539",
  "rgb": {
    "r": 180,
    "g": 213,
    "b": 57
  },
  "hsl": {
    "h": 72.692,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.82137,
    "c": 0.17774,
    "h": 121.1
  },
  "luminance": 0.57587
}

Semantic roles & 50–950 ramp

primary

#B4D539

secondary

#423182

accent

#40E863

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B4D539

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

Preview Lab → · Contrast checker → · Palette generator →