#C9DE33#C9DE33

#C9DE33 is a very light, vivid yellow. Relative luminance 0.649; OKLCH L 85.7% C 0.183 H 116.7°. Best body text is #000000 at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#C9DE33
RGB	rgb(201, 222, 51)
HSL	hsl(67, 72%, 54%)
HSV	hsv(67, 77%, 87%)
CMYK	cmyk(9.5%, 0%, 77%, 12.9%)
CIE-LAB	lab(84.43, -27.11, 74.72)
CIE-LCH	lch(84.43, 79.49, 109.94°)
OKLab	oklab(85.65% -0.0823 0.1634)
OKLCH	oklch(85.65% 0.183 116.7)
XYZ	xyz(50.8076, 64.8998, 12.9817)
Luminance	0.6490 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9DE33 #4833DE

analogous

#DE9D33 #C9DE33 #73DE33

triadic

#C9DE33 #33C9DE #DE33C9

tetradic

#C9DE33 #33DE9D #4833DE #DE3373

square

#C9DE33 #33DE9D #4833DE #DE3373

split-complementary

#C9DE33 #3373DE #9D33DE

monochromatic

#748215 #A4B61D #C9DE33 #D7E768 #E5EF9C

Accessibility & contrast

On white

1.50

#C9DE33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.98

#C9DE33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9DE33

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9DE33	#FFFFFF	#000000	##000000
##C9DE33	1.00	1.50	13.98	13.98
#FFFFFF	1.50	1.00	21.00	21.00
#000000	13.98	21.00	1.00	1.00
##000000	13.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EED200

Deuteranopia (green-blind)

#ECD443

Tritanopia (blue-blind)

#D6D1BE

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #c9de33;
/* rgb */ color: rgb(201, 222, 51);
/* oklch */ color: oklch(85.7% 0.183 116.7);

Tailwind

colors: {
  custom: {
    50: '#dde879',
    500: '#c9de33',
    950: '#000000',
  },
}

SCSS

$custom: #c9de33;
$custom-light: #dde879;
$custom-dark: #000000;

JSON

{
  "hex": "#c9de33",
  "rgb": {
    "r": 201,
    "g": 222,
    "b": 51
  },
  "hsl": {
    "h": 67.368,
    "s": 72.152,
    "l": 53.529
  },
  "oklch": {
    "l": 0.85653,
    "c": 0.18299,
    "h": 116.7
  },
  "luminance": 0.64899
}

Semantic roles & 50–950 ramp

primary

#C9DE33

secondary

#382D88

accent

#39EF4F

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#16160A

muted

#84847D

Preview Lab

Preview with #C9DE33

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

Preview Lab → · Contrast checker → · Palette generator →