#C9E23B#C9E23B

#C9E23B is a very light, vivid yellow. Relative luminance 0.671; OKLCH L 86.6% C 0.183 H 118.0°. Best body text is #000000 at 14.43:1 contrast (WCAG AA passes).

Color values

HEX#C9E23B
RGBrgb(201, 226, 59)
HSLhsl(69, 74%, 56%)
HSVhsv(69, 74%, 89%)
CMYKcmyk(11.1%, 0%, 73.9%, 11.4%)
CIE-LABlab(85.57, -28.66, 73.34)
CIE-LCHlch(85.57, 78.74, 111.34°)
OKLaboklab(86.58% -0.0859 0.1618)
OKLCHoklch(86.58% 0.183 118)
XYZxyz(52.0744, 67.1265, 14.3503)
Luminance0.6713 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#C9E23B #543BE2
analogous
#E2A73B #C9E23B #75E23B
triadic
#C9E23B #3BC9E2 #E23BC9
tetradic
#C9E23B #3BE2A7 #543BE2 #E23B75
square
#C9E23B #3BE2A7 #543BE2 #E23B75
split-complementary
#C9E23B #3B75E2 #A73BE2
monochromatic
#7C8E15 #AAC31D #C9E23B #D8EA70 #E6F2A6

Accessibility & contrast

On white

1.46
#C9E23B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.43
#C9E23B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9E23B
14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##C9E23B#FFFFFF#000000##000000
##C9E23B1.001.4614.4314.43
#FFFFFF1.461.0021.0021.00
#00000014.4321.001.001.00
##00000014.4321.001.001.00

Color blindness preview

Protanopia (red-blind)
#F1D614
Deuteranopia (green-blind)
#EFD74A
Tritanopia (blue-blind)
#D5D5C2
Achromatopsia (no color)
#D6D6D6

Design tokens & code

CSS
--color: #c9e23b;
/* rgb */ color: rgb(201, 226, 59);
/* oklch */ color: oklch(86.6% 0.183 118.0);
Tailwind
colors: {
  custom: {
    50: '#ddeb7d',
    500: '#c9e23b',
    950: '#000000',
  },
}
SCSS
$custom: #c9e23b;
$custom-light: #ddeb7d;
$custom-dark: #000000;
JSON
{
  "hex": "#c9e23b",
  "rgb": {
    "r": 201,
    "g": 226,
    "b": 59
  },
  "hsl": {
    "h": 68.982,
    "s": 74.222,
    "l": 55.882
  },
  "oklch": {
    "l": 0.86579,
    "c": 0.18324,
    "h": 118
  },
  "luminance": 0.67126
}

Semantic roles & 50–950 ramp

primary
#C9E23B
secondary
#3D2E93
accent
#37F153
background
#FEFEFB
surface
#FCFDF2
border
#D5D5CC
text
#16160B
muted
#84847E

Preview Lab

Preview with #C9E23B

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

Preview Lab → · Contrast checker → · Palette generator →

#C9E23B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva