#C9F631#C9F631

#C9F631 is a very light, highly saturated yellow-green. Relative luminance 0.786; OKLCH L 91.0% C 0.210 H 122.6°. Best body text is #000000 at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#C9F631
RGB	rgb(201, 246, 49)
HSL	hsl(74, 92%, 58%)
HSV	hsv(74, 80%, 96%)
CMYK	cmyk(18.3%, 0%, 80.1%, 3.5%)
CIE-LAB	lab(91.03, -38.22, 81.17)
CIE-LCH	lch(91.03, 89.72, 115.22°)
OKLab	oklab(90.97% -0.1129 0.1768)
OKLCH	oklch(90.97% 0.21 122.6)
XYZ	xyz(57.5984, 78.5506, 15.0325)
Luminance	0.7855 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9F631 #5E31F6

analogous

#F6C131 #C9F631 #66F631

triadic

#C9F631 #31C9F6 #F631C9

tetradic

#C9F631 #31F6C1 #5E31F6 #F63166

square

#C9F631 #31F6C1 #5E31F6 #F63166

split-complementary

#C9F631 #3166F6 #C131F6

monochromatic

#81A507 #AFE00A #C9F631 #D8F96C #E8FBA6

Accessibility & contrast

On white

1.26

#C9F631 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.71

#C9F631 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9F631

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9F631	#FFFFFF	#000000	##000000
##C9F631	1.00	1.26	16.71	16.71
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.71	21.00	1.00	1.00
##000000	16.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE600

Deuteranopia (green-blind)

#FFE547

Tritanopia (blue-blind)

#D4E9D3

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #c9f631;
/* rgb */ color: rgb(201, 246, 49);
/* oklch */ color: oklch(91.0% 0.210 122.6);

Tailwind

colors: {
  custom: {
    50: '#def97b',
    500: '#c9f631',
    950: '#000000',
  },
}

SCSS

$custom: #c9f631;
$custom-light: #def97b;
$custom-dark: #000000;

JSON

{
  "hex": "#c9f631",
  "rgb": {
    "r": 201,
    "g": 246,
    "b": 49
  },
  "hsl": {
    "h": 73.706,
    "s": 91.628,
    "l": 57.843
  },
  "oklch": {
    "l": 0.9097,
    "c": 0.20979,
    "h": 122.6
  },
  "luminance": 0.78551
}

Semantic roles & 50–950 ramp

primary

#C9F631

secondary

#4224A7

accent

#29FF5A

background

#FEFFFB

surface

#FCFFF2

border

#D5D7CC

text

#16170B

muted

#84857E

Preview Lab

Preview with #C9F631

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

Preview Lab → · Contrast checker → · Palette generator →