#C9D53B#C9D53B

#C9D53B is a very light, vivid yellow. Relative luminance 0.603; OKLCH L 83.7% C 0.169 H 114.0°. Best body text is #000000 at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#C9D53B
RGB	rgb(201, 213, 59)
HSL	hsl(65, 65%, 53%)
HSV	hsv(65, 72%, 84%)
CMYK	cmyk(5.6%, 0%, 72.3%, 16.5%)
CIE-LAB	lab(82.01, -22.45, 69.96)
CIE-LCH	lch(82.01, 73.48, 107.79°)
OKLab	oklab(83.72% -0.0688 0.1547)
OKLCH	oklch(83.72% 0.169 114)
XYZ	xyz(48.6725, 60.3227, 13.2163)
Luminance	0.6032 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9D53B #473BD5

analogous

#D5943B #C9D53B #7CD53B

triadic

#C9D53B #3BC9D5 #D53BC9

tetradic

#C9D53B #3BD594 #473BD5 #D53B7C

square

#C9D53B #3BD594 #473BD5 #D53B7C

split-complementary

#C9D53B #3B7CD5 #943BD5

monochromatic

#747B1A #A3AE25 #C9D53B #D7E06D #E5EBA0

Accessibility & contrast

On white

1.61

#C9D53B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.06

#C9D53B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9D53B

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9D53B	#FFFFFF	#000000	##000000
##C9D53B	1.00	1.61	13.06	13.06
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.06	21.00	1.00	1.00
##000000	13.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5CB1C

Deuteranopia (green-blind)

#E4CD48

Tritanopia (blue-blind)

#D6C8B7

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #c9d53b;
/* rgb */ color: rgb(201, 213, 59);
/* oklch */ color: oklch(83.7% 0.169 114.0);

Tailwind

colors: {
  custom: {
    50: '#dde17c',
    500: '#c9d53b',
    950: '#000000',
  },
}

SCSS

$custom: #c9d53b;
$custom-light: #dde17c;
$custom-dark: #000000;

JSON

{
  "hex": "#c9d53b",
  "rgb": {
    "r": 201,
    "g": 213,
    "b": 59
  },
  "hsl": {
    "h": 64.675,
    "s": 64.706,
    "l": 53.333
  },
  "oklch": {
    "l": 0.83724,
    "c": 0.1693,
    "h": 114
  },
  "luminance": 0.60322
}

Semantic roles & 50–950 ramp

primary

#C9D53B

secondary

#383183

accent

#40E84D

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#16150A

muted

#84847D

Preview Lab

Preview with #C9D53B

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

Preview Lab → · Contrast checker → · Palette generator →