#B4D43B#B4D43B

#B4D43B is a light, vivid yellow-green. Relative luminance 0.571; OKLCH L 81.9% C 0.175 H 120.8°. Best body text is #000000 at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#B4D43B
RGB	rgb(180, 212, 59)
HSL	hsl(73, 64%, 53%)
HSV	hsv(73, 72%, 83%)
CMYK	cmyk(15.1%, 0%, 72.2%, 16.9%)
CIE-LAB	lab(80.24, -30.52, 67.74)
CIE-LCH	lch(80.24, 74.30, 114.26°)
OKLab	oklab(81.92% -0.09 0.1506)
OKLCH	oklch(81.92% 0.175 120.8)
XYZ	xyz(43.1560, 57.1061, 12.8859)
Luminance	0.5711 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4D43B #5B3BD4

analogous

#D4A73B #B4D43B #67D43B

triadic

#B4D43B #3BB4D4 #D43BB4

tetradic

#B4D43B #3BD4A7 #5B3BD4 #D43B67

square

#B4D43B #3BD4A7 #5B3BD4 #D43B67

split-complementary

#B4D43B #3B67D4 #A73BD4

monochromatic

#667A1B #90AC26 #B4D43B #C7DF6D #DAEA9F

Accessibility & contrast

On white

1.69

#B4D43B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.42

#B4D43B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4D43B

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4D43B	#FFFFFF	#000000	##000000
##B4D43B	1.00	1.69	12.42	12.42
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.42	21.00	1.00	1.00
##000000	12.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C71D

Deuteranopia (green-blind)

#DDC748

Tritanopia (blue-blind)

#BEC9B6

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #b4d43b;
/* rgb */ color: rgb(180, 212, 59);
/* oklch */ color: oklch(81.9% 0.175 120.8);

Tailwind

colors: {
  custom: {
    50: '#cee17b',
    500: '#b4d43b',
    950: '#000000',
  },
}

SCSS

$custom: #b4d43b;
$custom-light: #cee17b;
$custom-dark: #000000;

JSON

{
  "hex": "#b4d43b",
  "rgb": {
    "r": 180,
    "g": 212,
    "b": 59
  },
  "hsl": {
    "h": 72.549,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.81923,
    "c": 0.17545,
    "h": 120.8
  },
  "luminance": 0.57106
}

Semantic roles & 50–950 ramp

primary

#B4D43B

secondary

#423182

accent

#41E764

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #B4D43B

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

Preview Lab → · Contrast checker → · Palette generator →