#C9D537#C9D537

#C9D537 is a very light, vivid yellow. Relative luminance 0.603; OKLCH L 83.7% C 0.172 H 113.9°. Best body text is #000000 at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#C9D537
RGB	rgb(201, 213, 55)
HSL	hsl(65, 65%, 53%)
HSV	hsv(65, 74%, 84%)
CMYK	cmyk(5.6%, 0%, 74.2%, 16.5%)
CIE-LAB	lab(81.99, -22.63, 71.26)
CIE-LCH	lch(81.99, 74.76, 107.62°)
OKLab	oklab(83.7% -0.0696 0.1568)
OKLCH	oklch(83.7% 0.172 113.9)
XYZ	xyz(48.5727, 60.2828, 12.6907)
Luminance	0.6028 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9D537 #4337D5

analogous

#D59237 #C9D537 #7AD537

triadic

#C9D537 #37C9D5 #D537C9

tetradic

#C9D537 #37D592 #4337D5 #D5377A

square

#C9D537 #37D592 #4337D5 #D5377A

split-complementary

#C9D537 #377AD5 #9237D5

monochromatic

#717819 #A1AB24 #C9D537 #D7E06A #E4EA9C

Accessibility & contrast

On white

1.61

#C9D537 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.06

#C9D537 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9D537

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9D537	#FFFFFF	#000000	##000000
##C9D537	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)

#E5CA12

Deuteranopia (green-blind)

#E4CD45

Tritanopia (blue-blind)

#D6C8B7

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #c9d537;
/* rgb */ color: rgb(201, 213, 55);
/* oklch */ color: oklch(83.7% 0.172 113.9);

Tailwind

colors: {
  custom: {
    50: '#dde17a',
    500: '#c9d537',
    950: '#000000',
  },
}

SCSS

$custom: #c9d537;
$custom-light: #dde17a;
$custom-dark: #000000;

JSON

{
  "hex": "#c9d537",
  "rgb": {
    "r": 201,
    "g": 213,
    "b": 55
  },
  "hsl": {
    "h": 64.557,
    "s": 65.289,
    "l": 52.549
  },
  "oklch": {
    "l": 0.837,
    "c": 0.17152,
    "h": 113.9
  },
  "luminance": 0.60282
}

Semantic roles & 50–950 ramp

primary

#C9D537

secondary

#363080

accent

#40E84C

background

#FEFEFB

surface

#FCFCF2

border

#D5D5CC

text

#16150A

muted

#84847D

Preview Lab

Preview with #C9D537

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

Preview Lab → · Contrast checker → · Palette generator →