#C9F443#C9F443

#C9F443 is a very light, vivid yellow-green. Relative luminance 0.775; OKLCH L 90.6% C 0.199 H 122.6°. Best body text is #000000 at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#C9F443
RGB	rgb(201, 244, 67)
HSL	hsl(75, 89%, 61%)
HSV	hsv(75, 73%, 96%)
CMYK	cmyk(17.6%, 0%, 72.5%, 4.3%)
CIE-LAB	lab(90.56, -36.56, 75.52)
CIE-LCH	lch(90.56, 83.90, 115.83°)
OKLab	oklab(90.62% -0.1071 0.1677)
OKLCH	oklch(90.62% 0.199 122.6)
XYZ	xyz(57.4520, 77.5239, 17.2460)
Luminance	0.7752 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C9F443 #6E43F4

analogous

#F4C643 #C9F443 #70F443

triadic

#C9F443 #43C9F4 #F443C9

tetradic

#C9F443 #43F4C6 #6E43F4 #F44370

square

#C9F443 #43F4C6 #6E43F4 #F44370

split-complementary

#C9F443 #4370F4 #C643F4

monochromatic

#89B20A #B6EC0E #C9F443 #DAF77D #EAFBB7

Accessibility & contrast

On white

1.27

#C9F443 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.50

#C9F443 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #C9F443

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C9F443	#FFFFFF	#000000	##000000
##C9F443	1.00	1.27	16.50	16.50
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.50	21.00	1.00	1.00
##000000	16.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE51E

Deuteranopia (green-blind)

#FDE453

Tritanopia (blue-blind)

#D3E8D2

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #c9f443;
/* rgb */ color: rgb(201, 244, 67);
/* oklch */ color: oklch(90.6% 0.199 122.6);

Tailwind

colors: {
  custom: {
    50: '#ddf783',
    500: '#c9f443',
    950: '#000000',
  },
}

SCSS

$custom: #c9f443;
$custom-light: #ddf783;
$custom-dark: #000000;

JSON

{
  "hex": "#c9f443",
  "rgb": {
    "r": 201,
    "g": 244,
    "b": 67
  },
  "hsl": {
    "h": 74.576,
    "s": 88.945,
    "l": 60.98
  },
  "oklch": {
    "l": 0.90619,
    "c": 0.19897,
    "h": 122.6
  },
  "luminance": 0.77524
}

Semantic roles & 50–950 ramp

primary

#C9F443

secondary

#4B29B2

accent

#00E638

background

#FEFFFC

surface

#FCFEF3

border

#D5D6CD

text

#16170C

muted

#84857F

Preview Lab

Preview with #C9F443

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

Preview Lab → · Contrast checker → · Palette generator →