#C9EC54#C9EC54

#C9EC54 is a very light, vivid yellow-green. Relative luminance 0.730; OKLCH L 89.0% C 0.179 H 121.3°. Best body text is #000000 at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#C9EC54
RGB	rgb(201, 236, 84)
HSL	hsl(74, 80%, 63%)
HSV	hsv(74, 64%, 93%)
CMYK	cmyk(14.8%, 0%, 64.4%, 7.5%)
CIE-LAB	lab(88.47, -31.93, 67.29)
CIE-LCH	lch(88.47, 74.48, 115.39°)
OKLab	oklab(88.97% -0.0928 0.1529)
OKLCH	oklch(88.97% 0.179 121.3)
XYZ	xyz(55.6838, 73.0485, 19.5520)
Luminance	0.7305 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EC54 #7754EC

analogous

#ECC354 #C9EC54 #7DEC54

triadic

#C9EC54 #54C9EC #EC54C9

tetradic

#C9EC54 #54ECC3 #7754EC #EC547D

square

#C9EC54 #54ECC3 #7754EC #EC547D

split-complementary

#C9EC54 #547DEC #C354EC

monochromatic

#8DB214 #B8E61D #C9EC54 #DAF28B #ECF8C2

Accessibility & contrast

On white

1.35

#C9EC54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.61

#C9EC54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EC54

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EC54	#FFFFFF	#000000	##000000
##C9EC54	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)

#FADF40

Deuteranopia (green-blind)

#F5DE5F

Tritanopia (blue-blind)

#D3E0CD

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #c9ec54;
/* rgb */ color: rgb(201, 236, 84);
/* oklch */ color: oklch(89.0% 0.179 121.3);

Tailwind

colors: {
  custom: {
    50: '#ddf28b',
    500: '#c9ec54',
    950: '#000000',
  },
}

SCSS

$custom: #c9ec54;
$custom-light: #ddf28b;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ec54",
  "rgb": {
    "r": 201,
    "g": 236,
    "b": 84
  },
  "hsl": {
    "h": 73.816,
    "s": 80,
    "l": 62.745
  },
  "oklch": {
    "l": 0.88967,
    "c": 0.17888,
    "h": 121.3
  },
  "luminance": 0.73049
}

Semantic roles & 50–950 ramp

primary

#C9EC54

secondary

#5032B2

accent

#09DC3A

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15160C

muted

#84857F

Preview Lab

Preview with #C9EC54

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

Preview Lab → · Contrast checker → · Palette generator →