#C9D43B#C9D43B

#C9D43B is a very light, vivid yellow. Relative luminance 0.598; OKLCH L 83.5% C 0.168 H 113.6°. Best body text is #000000 at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#C9D43B
RGB	rgb(201, 212, 59)
HSL	hsl(64, 64%, 53%)
HSV	hsv(64, 72%, 83%)
CMYK	cmyk(5.2%, 0%, 72.2%, 16.9%)
CIE-LAB	lab(81.74, -21.96, 69.70)
CIE-LCH	lch(81.74, 73.08, 107.49°)
OKLab	oklab(83.51% -0.0674 0.1542)
OKLCH	oklch(83.51% 0.168 113.6)
XYZ	xyz(48.4217, 59.8212, 13.1327)
Luminance	0.5982 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9D43B #463BD4

analogous

#D4933B #C9D43B #7CD43B

triadic

#C9D43B #3BC9D4 #D43BC9

tetradic

#C9D43B #3BD493 #463BD4 #D43B7C

square

#C9D43B #3BD493 #463BD4 #D43B7C

split-complementary

#C9D43B #3B7CD4 #933BD4

monochromatic

#737A1B #A2AC26 #C9D43B #D7DF6D #E5EA9F

Accessibility & contrast

On white

1.62

#C9D43B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.96

#C9D43B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9D43B

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9D43B	#FFFFFF	#000000	##000000
##C9D43B	1.00	1.62	12.96	12.96
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.96	21.00	1.00	1.00
##000000	12.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4CA1D

Deuteranopia (green-blind)

#E3CD47

Tritanopia (blue-blind)

#D6C7B7

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #c9d43b;
/* rgb */ color: rgb(201, 212, 59);
/* oklch */ color: oklch(83.5% 0.168 113.6);

Tailwind

colors: {
  custom: {
    50: '#dde17c',
    500: '#c9d43b',
    950: '#000000',
  },
}

SCSS

$custom: #c9d43b;
$custom-light: #dde17c;
$custom-dark: #000000;

JSON

{
  "hex": "#c9d43b",
  "rgb": {
    "r": 201,
    "g": 212,
    "b": 59
  },
  "hsl": {
    "h": 64.314,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.83506,
    "c": 0.16825,
    "h": 113.6
  },
  "luminance": 0.5982
}

Semantic roles & 50–950 ramp

primary

#C9D43B

secondary

#373182

accent

#41E74D

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#16150A

muted

#84847D

Preview Lab

Preview with #C9D43B

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

Preview Lab → · Contrast checker → · Palette generator →