#C9EC55#C9EC55

#C9EC55 is a very light, vivid yellow-green. Relative luminance 0.731; OKLCH L 89.0% C 0.178 H 121.3°. Best body text is #000000 at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#C9EC55
RGB	rgb(201, 236, 85)
HSL	hsl(74, 80%, 63%)
HSV	hsv(74, 64%, 93%)
CMYK	cmyk(14.8%, 0%, 64%, 7.5%)
CIE-LAB	lab(88.48, -31.86, 66.90)
CIE-LCH	lch(88.48, 74.10, 115.47°)
OKLab	oklab(88.98% -0.0925 0.1522)
OKLCH	oklch(88.98% 0.178 121.3)
XYZ	xyz(55.7233, 73.0643, 19.7598)
Luminance	0.7306 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EC55 #7855EC

analogous

#ECC355 #C9EC55 #7EEC55

triadic

#C9EC55 #55C9EC #EC55C9

tetradic

#C9EC55 #55ECC3 #7855EC #EC557E

square

#C9EC55 #55ECC3 #7855EC #EC557E

split-complementary

#C9EC55 #557EEC #C355EC

monochromatic

#8EB314 #B8E61E #C9EC55 #DAF28C #ECF8C3

Accessibility & contrast

On white

1.35

#C9EC55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.61

#C9EC55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EC55

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EC55	#FFFFFF	#000000	##000000
##C9EC55	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)

#FADF41

Deuteranopia (green-blind)

#F5DE60

Tritanopia (blue-blind)

#D3E0CD

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #c9ec55;
/* rgb */ color: rgb(201, 236, 85);
/* oklch */ color: oklch(89.0% 0.178 121.3);

Tailwind

colors: {
  custom: {
    50: '#ddf28c',
    500: '#c9ec55',
    950: '#000000',
  },
}

SCSS

$custom: #c9ec55;
$custom-light: #ddf28c;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ec55",
  "rgb": {
    "r": 201,
    "g": 236,
    "b": 85
  },
  "hsl": {
    "h": 73.907,
    "s": 79.894,
    "l": 62.941
  },
  "oklch": {
    "l": 0.88975,
    "c": 0.17816,
    "h": 121.3
  },
  "luminance": 0.73064
}

Semantic roles & 50–950 ramp

primary

#C9EC55

secondary

#5033B3

accent

#09DC3A

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160C

muted

#84857F

Preview Lab

Preview with #C9EC55

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

Preview Lab → · Contrast checker → · Palette generator →