#C9EC53#C9EC53

#C9EC53 is a very light, vivid yellow-green. Relative luminance 0.730; OKLCH L 89.0% C 0.180 H 121.2°. Best body text is #000000 at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#C9EC53
RGB	rgb(201, 236, 83)
HSL	hsl(74, 80%, 63%)
HSV	hsv(74, 65%, 93%)
CMYK	cmyk(14.8%, 0%, 64.8%, 7.5%)
CIE-LAB	lab(88.46, -31.99, 67.67)
CIE-LCH	lch(88.46, 74.85, 115.31°)
OKLab	oklab(88.96% -0.0931 0.1536)
OKLCH	oklch(88.96% 0.18 121.2)
XYZ	xyz(55.6449, 73.0330, 19.3472)
Luminance	0.7303 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EC53 #7653EC

analogous

#ECC253 #C9EC53 #7DEC53

triadic

#C9EC53 #53C9EC #EC53C9

tetradic

#C9EC53 #53ECC2 #7653EC #EC537D

square

#C9EC53 #53ECC2 #7653EC #EC537D

split-complementary

#C9EC53 #537DEC #C253EC

monochromatic

#8DB114 #B8E61C #C9EC53 #DAF28A #ECF8C1

Accessibility & contrast

On white

1.35

#C9EC53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.61

#C9EC53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EC53

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EC53	#FFFFFF	#000000	##000000
##C9EC53	1.00	1.35	15.61	15.61
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.61	21.00	1.00	1.00
##000000	15.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FADF3E

Deuteranopia (green-blind)

#F5DE5E

Tritanopia (blue-blind)

#D3E0CD

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #c9ec53;
/* rgb */ color: rgb(201, 236, 83);
/* oklch */ color: oklch(89.0% 0.180 121.2);

Tailwind

colors: {
  custom: {
    50: '#ddf28b',
    500: '#c9ec53',
    950: '#000000',
  },
}

SCSS

$custom: #c9ec53;
$custom-light: #ddf28b;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ec53",
  "rgb": {
    "r": 201,
    "g": 236,
    "b": 83
  },
  "hsl": {
    "h": 73.725,
    "s": 80.105,
    "l": 62.549
  },
  "oklch": {
    "l": 0.88958,
    "c": 0.17959,
    "h": 121.2
  },
  "luminance": 0.73033
}

Semantic roles & 50–950 ramp

primary

#C9EC53

secondary

#4F32B1

accent

#09DC39

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160C

muted

#84857F

Preview Lab

Preview with #C9EC53

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

Preview Lab → · Contrast checker → · Palette generator →