#C9EF4E#C9EF4E

#C9EF4E is a very light, vivid yellow-green. Relative luminance 0.747; OKLCH L 89.6% C 0.187 H 121.8°. Best body text is #000000 at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#C9EF4E
RGB	rgb(201, 239, 78)
HSL	hsl(74, 83%, 62%)
HSV	hsv(74, 67%, 94%)
CMYK	cmyk(15.9%, 0%, 67.4%, 6.3%)
CIE-LAB	lab(89.25, -33.69, 70.38)
CIE-LCH	lch(89.25, 78.03, 115.58°)
OKLab	oklab(89.58% -0.0982 0.1586)
OKLCH	oklch(89.58% 0.187 121.8)
XYZ	xyz(56.3298, 74.7005, 18.6573)
Luminance	0.7470 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EF4E #744EEF

analogous

#EFC44E #C9EF4E #79EF4E

triadic

#C9EF4E #4EC9EF #EF4EC9

tetradic

#C9EF4E #4EEFC4 #744EEF #EF4E79

square

#C9EF4E #4EEFC4 #744EEF #EF4E79

split-complementary

#C9EF4E #4E79EF #C44EEF

monochromatic

#8CB210 #B8EA16 #C9EF4E #DAF486 #EBF9BE

Accessibility & contrast

On white

1.32

#C9EF4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.94

#C9EF4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EF4E

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EF4E	#FFFFFF	#000000	##000000
##C9EF4E	1.00	1.32	15.94	15.94
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.94	21.00	1.00	1.00
##000000	15.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE136

Deuteranopia (green-blind)

#F8E05B

Tritanopia (blue-blind)

#D3E3CF

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #c9ef4e;
/* rgb */ color: rgb(201, 239, 78);
/* oklch */ color: oklch(89.6% 0.187 121.8);

Tailwind

colors: {
  custom: {
    50: '#ddf488',
    500: '#c9ef4e',
    950: '#000000',
  },
}

SCSS

$custom: #c9ef4e;
$custom-light: #ddf488;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ef4e",
  "rgb": {
    "r": 201,
    "g": 239,
    "b": 78
  },
  "hsl": {
    "h": 74.161,
    "s": 83.42,
    "l": 62.157
  },
  "oklch": {
    "l": 0.89583,
    "c": 0.18654,
    "h": 121.8
  },
  "luminance": 0.74701
}

Semantic roles & 50–950 ramp

primary

#C9EF4E

secondary

#4E2FB2

accent

#06E039

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170C

muted

#84857F

Preview Lab

Preview with #C9EF4E

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

Preview Lab → · Contrast checker → · Palette generator →