#B4F063#B4F063

#B4F063 is a very light, vivid yellow-green. Relative luminance 0.729; OKLCH L 88.6% C 0.181 H 128.9°. Best body text is #000000 at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#B4F063
RGB	rgb(180, 240, 99)
HSL	hsl(86, 82%, 66%)
HSV	hsv(86, 59%, 94%)
CMYK	cmyk(25%, 0%, 58.8%, 5.9%)
CIE-LAB	lab(88.41, -40.50, 60.69)
CIE-LCH	lch(88.41, 72.96, 123.71°)
OKLab	oklab(88.63% -0.114 0.1411)
OKLCH	oklch(88.63% 0.181 128.9)
XYZ	xyz(52.2343, 72.9232, 23.1255)
Luminance	0.7292 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4F063 #9F63F0

analogous

#F0E663 #B4F063 #6EF063

triadic

#B4F063 #63B4F0 #F063B4

tetradic

#B4F063 #63F0E6 #9F63F0 #F0636E

square

#B4F063 #63F0E6 #9F63F0 #F0636E

split-complementary

#B4F063 #636EF0 #E663F0

monochromatic

#7AC613 #99EB2B #B4F063 #CFF59B #EAFBD3

Accessibility & contrast

On white

1.35

#B4F063 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.58

#B4F063 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B4F063

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4F063	#FFFFFF	#000000	##000000
##B4F063	1.00	1.35	15.58	15.58
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.58	21.00	1.00	1.00
##000000	15.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FBE153

Deuteranopia (green-blind)

#F2DD6D

Tritanopia (blue-blind)

#B9E6D2

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #b4f063;
/* rgb */ color: rgb(180, 240, 99);
/* oklch */ color: oklch(88.6% 0.181 128.9);

Tailwind

colors: {
  custom: {
    50: '#cef594',
    500: '#b4f063',
    950: '#000000',
  },
}

SCSS

$custom: #b4f063;
$custom-light: #cef594;
$custom-dark: #000000;

JSON

{
  "hex": "#b4f063",
  "rgb": {
    "r": 180,
    "g": 240,
    "b": 99
  },
  "hsl": {
    "h": 85.532,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.88625,
    "c": 0.18141,
    "h": 128.9
  },
  "luminance": 0.72924
}

Semantic roles & 50–950 ramp

primary

#B4F063

secondary

#7134C3

accent

#07DF63

background

#FEFFFC

surface

#FBFEF5

border

#D4D6CF

text

#14170D

muted

#83857F

Preview Lab

Preview with #B4F063

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

Preview Lab → · Contrast checker → · Palette generator →