#C9DE3B#C9DE3B

#C9DE3B is a very light, vivid yellow. Relative luminance 0.650; OKLCH L 85.7% C 0.179 H 116.8°. Best body text is #000000 at 14.00:1 contrast (WCAG AA passes).

Color values

HEX	#C9DE3B
RGB	rgb(201, 222, 59)
HSL	hsl(68, 71%, 55%)
HSV	hsv(68, 73%, 87%)
CMYK	cmyk(9.5%, 0%, 73.4%, 12.9%)
CIE-LAB	lab(84.47, -26.77, 72.30)
CIE-LCH	lch(84.47, 77.10, 110.32°)
OKLab	oklab(85.7% -0.0807 0.1596)
OKLCH	oklch(85.7% 0.179 116.8)
XYZ	xyz(50.9994, 64.9765, 13.9919)
Luminance	0.6498 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9DE3B #503BDE

analogous

#DEA13B #C9DE3B #78DE3B

triadic

#C9DE3B #3BC9DE #DE3BC9

tetradic

#C9DE3B #3BDEA1 #503BDE #DE3B78

square

#C9DE3B #3BDEA1 #503BDE #DE3B78

split-complementary

#C9DE3B #3B78DE #A13BDE

monochromatic

#798817 #A8BC20 #C9DE3B #D7E76F #E6F0A4

Accessibility & contrast

On white

1.50

#C9DE3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.00

#C9DE3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9DE3B

14.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9DE3B	#FFFFFF	#000000	##000000
##C9DE3B	1.00	1.50	14.00	14.00
#FFFFFF	1.50	1.00	21.00	21.00
#000000	14.00	21.00	1.00	1.00
##000000	14.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD217

Deuteranopia (green-blind)

#EBD449

Tritanopia (blue-blind)

#D6D1BF

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #c9de3b;
/* rgb */ color: rgb(201, 222, 59);
/* oklch */ color: oklch(85.7% 0.179 116.8);

Tailwind

colors: {
  custom: {
    50: '#dde87d',
    500: '#c9de3b',
    950: '#000000',
  },
}

SCSS

$custom: #c9de3b;
$custom-light: #dde87d;
$custom-dark: #000000;

JSON

{
  "hex": "#c9de3b",
  "rgb": {
    "r": 201,
    "g": 222,
    "b": 59
  },
  "hsl": {
    "h": 67.73,
    "s": 71.179,
    "l": 55.098
  },
  "oklch": {
    "l": 0.85697,
    "c": 0.1789,
    "h": 116.8
  },
  "luminance": 0.64976
}

Semantic roles & 50–950 ramp

primary

#C9DE3B

secondary

#3C2F8E

accent

#3AEE51

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#16160A

muted

#84847D

Preview Lab

Preview with #C9DE3B

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

Preview Lab → · Contrast checker → · Palette generator →