#C9F258#C9F258

#C9F258 is a very light, vivid yellow-green. Relative luminance 0.766; OKLCH L 90.3% C 0.183 H 122.9°. Best body text is #000000 at 16.33:1 contrast (WCAG AA passes).

Color values

HEX	#C9F258
RGB	rgb(201, 242, 88)
HSL	hsl(76, 86%, 65%)
HSV	hsv(76, 64%, 95%)
CMYK	cmyk(16.9%, 0%, 63.6%, 5.1%)
CIE-LAB	lab(90.15, -34.42, 67.49)
CIE-LCH	lch(90.15, 75.76, 117.02°)
OKLab	oklab(90.33% -0.0994 0.1539)
OKLCH	oklch(90.33% 0.183 122.9)
XYZ	xyz(57.6015, 76.6261, 20.9864)
Luminance	0.7663 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9F258 #8158F2

analogous

#F2CE58 #C9F258 #7CF258

triadic

#C9F258 #58C9F2 #F258C9

tetradic

#C9F258 #58F2CE #8158F2 #F2587C

square

#C9F258 #58F2CE #8158F2 #F2587C

split-complementary

#C9F258 #587CF2 #CE58F2

monochromatic

#91C10F #B7EE1F #C9F258 #DBF691 #EEFBCA

Accessibility & contrast

On white

1.29

#C9F258 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.33

#C9F258 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9F258

16.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9F258	#FFFFFF	#000000	##000000
##C9F258	1.00	1.29	16.33	16.33
#FFFFFF	1.29	1.00	21.00	21.00
#000000	16.33	21.00	1.00	1.00
##000000	16.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE444

Deuteranopia (green-blind)

#FAE363

Tritanopia (blue-blind)

#D2E6D2

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #c9f258;
/* rgb */ color: rgb(201, 242, 88);
/* oklch */ color: oklch(90.3% 0.183 122.9);

Tailwind

colors: {
  custom: {
    50: '#ddf68e',
    500: '#c9f258',
    950: '#000000',
  },
}

SCSS

$custom: #c9f258;
$custom-light: #ddf68e;
$custom-dark: #000000;

JSON

{
  "hex": "#c9f258",
  "rgb": {
    "r": 201,
    "g": 242,
    "b": 88
  },
  "hsl": {
    "h": 75.974,
    "s": 85.556,
    "l": 64.706
  },
  "oklch": {
    "l": 0.90329,
    "c": 0.18315,
    "h": 122.9
  },
  "luminance": 0.76626
}

Semantic roles & 50–950 ramp

primary

#C9F258

secondary

#5630BE

accent

#03E23F

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C9F258

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

Preview Lab → · Contrast checker → · Palette generator →