#C4F251#C4F251

#C4F251 is a very light, vivid yellow-green. Relative luminance 0.758; OKLCH L 89.9% C 0.190 H 124.0°. Best body text is #000000 at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#C4F251
RGB	rgb(196, 242, 81)
HSL	hsl(77, 86%, 63%)
HSV	hsv(77, 67%, 95%)
CMYK	cmyk(19%, 0%, 66.5%, 5.1%)
CIE-LAB	lab(89.78, -36.78, 69.71)
CIE-LCH	lch(89.78, 78.82, 117.82°)
OKLab	oklab(89.94% -0.1062 0.1577)
OKLCH	oklch(89.94% 0.19 124)
XYZ	xyz(56.0028, 75.8337, 19.4699)
Luminance	0.7583 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C4F251 #7F51F2

analogous

#F2CF51 #C4F251 #73F251

triadic

#C4F251 #51C4F2 #F251C4

tetradic

#C4F251 #51F2CF #7F51F2 #F25173

square

#C4F251 #51F2CF #7F51F2 #F25173

split-complementary

#C4F251 #5173F2 #CF51F2

monochromatic

#89BB0E #B1EE18 #C4F251 #D7F68A #EBFBC3

Accessibility & contrast

On white

1.30

#C4F251 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.17

#C4F251 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C4F251

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C4F251	#FFFFFF	#000000	##000000
##C4F251	1.00	1.30	16.17	16.17
#FFFFFF	1.30	1.00	21.00	21.00
#000000	16.17	21.00	1.00	1.00
##000000	16.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE33A

Deuteranopia (green-blind)

#F9E15E

Tritanopia (blue-blind)

#CDE7D2

Achromatopsia (no color)

#E2E2E2

Design tokens & code

CSS

--color: #c4f251;
/* rgb */ color: rgb(196, 242, 81);
/* oklch */ color: oklch(89.9% 0.190 124.0);

Tailwind

colors: {
  custom: {
    50: '#d9f68a',
    500: '#c4f251',
    950: '#000000',
  },
}

SCSS

$custom: #c4f251;
$custom-light: #d9f68a;
$custom-dark: #000000;

JSON

{
  "hex": "#c4f251",
  "rgb": {
    "r": 196,
    "g": 242,
    "b": 81
  },
  "hsl": {
    "h": 77.143,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.89936,
    "c": 0.19013,
    "h": 124
  },
  "luminance": 0.75834
}

Semantic roles & 50–950 ramp

primary

#C4F251

secondary

#562EB9

accent

#03E343

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170C

muted

#84857F

Preview Lab

Preview with #C4F251

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

Preview Lab → · Contrast checker → · Palette generator →