#C9EF61#C9EF61

#C9EF61 is a very light, vivid yellow-green. Relative luminance 0.750; OKLCH L 89.7% C 0.173 H 122.6°. Best body text is #000000 at 16.00:1 contrast (WCAG AA passes).

Color values

HEX	#C9EF61
RGB	rgb(201, 239, 97)
HSL	hsl(76, 82%, 66%)
HSV	hsv(76, 59%, 94%)
CMYK	cmyk(15.9%, 0%, 59.4%, 6.3%)
CIE-LAB	lab(89.40, -32.38, 63.00)
CIE-LCH	lch(89.40, 70.83, 117.21°)
OKLab	oklab(89.75% -0.0929 0.1455)
OKLCH	oklch(89.75% 0.173 122.6)
XYZ	xyz(57.1120, 75.0134, 22.7772)
Luminance	0.7501 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9EF61 #8761EF

analogous

#EFCE61 #C9EF61 #82EF61

triadic

#C9EF61 #61C9EF #EF61C9

tetradic

#C9EF61 #61EFCE #8761EF #EF6182

square

#C9EF61 #61EFCE #8761EF #EF6182

split-complementary

#C9EF61 #6182EF #CE61EF

monochromatic

#93C214 #B6E929 #C9EF61 #DCF599 #EFFAD0

Accessibility & contrast

On white

1.31

#C9EF61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.00

#C9EF61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9EF61

16.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9EF61	#FFFFFF	#000000	##000000
##C9EF61	1.00	1.31	16.00	16.00
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.00	21.00	1.00	1.00
##000000	16.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE251

Deuteranopia (green-blind)

#F7E16B

Tritanopia (blue-blind)

#D2E4D1

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #c9ef61;
/* rgb */ color: rgb(201, 239, 97);
/* oklch */ color: oklch(89.7% 0.173 122.6);

Tailwind

colors: {
  custom: {
    50: '#dcf493',
    500: '#c9ef61',
    950: '#000000',
  },
}

SCSS

$custom: #c9ef61;
$custom-light: #dcf493;
$custom-dark: #000000;

JSON

{
  "hex": "#c9ef61",
  "rgb": {
    "r": 201,
    "g": 239,
    "b": 97
  },
  "hsl": {
    "h": 76.056,
    "s": 81.609,
    "l": 65.882
  },
  "oklch": {
    "l": 0.89748,
    "c": 0.17259,
    "h": 122.6
  },
  "luminance": 0.75014
}

Semantic roles & 50–950 ramp

primary

#C9EF61

secondary

#5A34C0

accent

#08DE41

background

#FEFFFC

surface

#FCFEF4

border

#D5D6CE

text

#15170D

muted

#84857F

Preview Lab

Preview with #C9EF61

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

Preview Lab → · Contrast checker → · Palette generator →