#C9F058#C9F058

#C9F058 is a very light, vivid yellow-green. Relative luminance 0.754; OKLCH L 89.9% C 0.181 H 122.4°. Best body text is #000000 at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#C9F058
RGB	rgb(201, 240, 88)
HSL	hsl(75, 84%, 64%)
HSV	hsv(75, 63%, 94%)
CMYK	cmyk(16.3%, 0%, 63.3%, 5.9%)
CIE-LAB	lab(89.60, -33.50, 66.90)
CIE-LCH	lch(89.60, 74.82, 116.60°)
OKLab	oklab(89.89% -0.0968 0.1526)
OKLCH	oklch(89.89% 0.181 122.4)
XYZ	xyz(57.0095, 75.4421, 20.7890)
Luminance	0.7544 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9F058 #7F58F0

analogous

#F0CB58 #C9F058 #7DF058

triadic

#C9F058 #58C9F0 #F058C9

tetradic

#C9F058 #58F0CB #7F58F0 #F0587D

square

#C9F058 #58F0CB #7F58F0 #F0587D

split-complementary

#C9F058 #587DF0 #CB58F0

monochromatic

#91BD11 #B7EB20 #C9F058 #DBF590 #EDFAC8

Accessibility & contrast

On white

1.31

#C9F058 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.09

#C9F058 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9F058

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9F058	#FFFFFF	#000000	##000000
##C9F058	1.00	1.31	16.09	16.09
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.09	21.00	1.00	1.00
##000000	16.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE244

Deuteranopia (green-blind)

#F8E163

Tritanopia (blue-blind)

#D3E5D1

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #c9f058;
/* rgb */ color: rgb(201, 240, 88);
/* oklch */ color: oklch(89.9% 0.181 122.4);

Tailwind

colors: {
  custom: {
    50: '#ddf58e',
    500: '#c9f058',
    950: '#000000',
  },
}

SCSS

$custom: #c9f058;
$custom-light: #ddf58e;
$custom-dark: #000000;

JSON

{
  "hex": "#c9f058",
  "rgb": {
    "r": 201,
    "g": 240,
    "b": 88
  },
  "hsl": {
    "h": 75.395,
    "s": 83.516,
    "l": 64.314
  },
  "oklch": {
    "l": 0.89886,
    "c": 0.18075,
    "h": 122.4
  },
  "luminance": 0.75442
}

Semantic roles & 50–950 ramp

primary

#C9F058

secondary

#5431BB

accent

#06E03E

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C9F058

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

Preview Lab → · Contrast checker → · Palette generator →