#C4F55B#C4F55B

#C4F55B is a very light, vivid yellow-green. Relative luminance 0.778; OKLCH L 90.7% C 0.187 H 125.1°. Best body text is #000000 at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#C4F55B
RGB	rgb(196, 245, 91)
HSL	hsl(79, 89%, 66%)
HSV	hsv(79, 63%, 96%)
CMYK	cmyk(20%, 0%, 62.9%, 3.9%)
CIE-LAB	lab(90.69, -37.46, 66.77)
CIE-LCH	lch(90.69, 76.56, 119.29°)
OKLab	oklab(90.69% -0.1072 0.1528)
OKLCH	oklch(90.69% 0.187 125.1)
XYZ	xyz(57.3060, 77.7953, 21.8924)
Luminance	0.7780 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C4F55B #8C5BF5

analogous

#F5D95B #C4F55B #77F55B

triadic

#C4F55B #5BC4F5 #F55BC4

tetradic

#C4F55B #5BF5D9 #8C5BF5 #F55B77

square

#C4F55B #5BF5D9 #8C5BF5 #F55B77

split-complementary

#C4F55B #5B77F5 #D95BF5

monochromatic

#8DC90C #AFF121 #C4F55B #D9F995 #EEFCCE

Accessibility & contrast

On white

1.27

#C4F55B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.56

#C4F55B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C4F55B

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C4F55B	#FFFFFF	#000000	##000000
##C4F55B	1.00	1.27	16.56	16.56
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.56	21.00	1.00	1.00
##000000	16.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE648

Deuteranopia (green-blind)

#FBE466

Tritanopia (blue-blind)

#CCEAD5

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #c4f55b;
/* rgb */ color: rgb(196, 245, 91);
/* oklch */ color: oklch(90.7% 0.187 125.1);

Tailwind

colors: {
  custom: {
    50: '#d9f890',
    500: '#c4f55b',
    950: '#000000',
  },
}

SCSS

$custom: #c4f55b;
$custom-light: #d9f890;
$custom-dark: #000000;

JSON

{
  "hex": "#c4f55b",
  "rgb": {
    "r": 196,
    "g": 245,
    "b": 91
  },
  "hsl": {
    "h": 79.091,
    "s": 88.506,
    "l": 65.882
  },
  "oklch": {
    "l": 0.9069,
    "c": 0.1867,
    "h": 125.1
  },
  "luminance": 0.77796
}

Semantic roles & 50–950 ramp

primary

#C4F55B

secondary

#5F2EC6

accent

#00E549

background

#FEFFFC

surface

#FCFFF4

border

#D5D7CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C4F55B

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

Preview Lab → · Contrast checker → · Palette generator →