#C9F55A#C9F55A

#C9F55A is a very light, vivid yellow-green. Relative luminance 0.785; OKLCH L 91.0% C 0.185 H 123.6°. Best body text is #000000 at 16.69:1 contrast (WCAG AA passes).

Color values

HEX	#C9F55A
RGB	rgb(201, 245, 90)
HSL	hsl(77, 89%, 66%)
HSV	hsv(77, 63%, 96%)
CMYK	cmyk(18%, 0%, 63.3%, 3.9%)
CIE-LAB	lab(90.99, -35.64, 67.59)
CIE-LCH	lch(90.99, 76.41, 117.80°)
OKLab	oklab(91.01% -0.1026 0.1543)
OKLCH	oklch(91.01% 0.185 123.6)
XYZ	xyz(58.5857, 78.4601, 21.7287)
Luminance	0.7846 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9F55A #865AF5

analogous

#F5D35A #C9F55A #7BF55A

triadic

#C9F55A #5AC9F5 #F55AC9

tetradic

#C9F55A #5AF5D3 #865AF5 #F55A7B

square

#C9F55A #5AF5D3 #865AF5 #F55A7B

split-complementary

#C9F55A #5A7BF5 #D35AF5

monochromatic

#93C80C #B6F220 #C9F55A #DCF894 #EFFCCD

Accessibility & contrast

On white

1.26

#C9F55A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.69

#C9F55A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9F55A

16.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9F55A	#FFFFFF	#000000	##000000
##C9F55A	1.00	1.26	16.69	16.69
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.69	21.00	1.00	1.00
##000000	16.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE646

Deuteranopia (green-blind)

#FCE565

Tritanopia (blue-blind)

#D2EAD5

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #c9f55a;
/* rgb */ color: rgb(201, 245, 90);
/* oklch */ color: oklch(91.0% 0.185 123.6);

Tailwind

colors: {
  custom: {
    50: '#ddf88f',
    500: '#c9f55a',
    950: '#000000',
  },
}

SCSS

$custom: #c9f55a;
$custom-light: #ddf88f;
$custom-dark: #000000;

JSON

{
  "hex": "#c9f55a",
  "rgb": {
    "r": 201,
    "g": 245,
    "b": 90
  },
  "hsl": {
    "h": 77.032,
    "s": 88.571,
    "l": 65.686
  },
  "oklch": {
    "l": 0.91012,
    "c": 0.18531,
    "h": 123.6
  },
  "luminance": 0.78461
}

Semantic roles & 50–950 ramp

primary

#C9F55A

secondary

#592EC5

accent

#00E541

background

#FEFFFC

surface

#FCFFF4

border

#D5D7CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C9F55A

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

Preview Lab → · Contrast checker → · Palette generator →