#ADD33F#ADD33F

#ADD33F is a light, vivid yellow-green. Relative luminance 0.558; OKLCH L 81.2% C 0.175 H 122.9°. Best body text is #000000 at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#ADD33F
RGB	rgb(173, 211, 63)
HSL	hsl(75, 63%, 54%)
HSV	hsv(75, 70%, 83%)
CMYK	cmyk(18%, 0%, 70.1%, 17.3%)
CIE-LAB	lab(79.52, -32.62, 65.46)
CIE-LCH	lch(79.52, 73.14, 116.49°)
OKLab	oklab(81.23% -0.095 0.1467)
OKLCH	oklch(81.23% 0.175 122.9)
XYZ	xyz(41.4255, 55.8315, 13.2958)
Luminance	0.5583 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ADD33F #653FD3

analogous

#D3AF3F #ADD33F #63D33F

triadic

#ADD33F #3FADD3 #D33FAD

tetradic

#ADD33F #3FD3AF #653FD3 #D33F63

square

#ADD33F #3FD3AF #653FD3 #D33F63

split-complementary

#ADD33F #3F63D3 #AF3FD3

monochromatic

#637B1C #8BAD28 #ADD33F #C2DE71 #D8EAA3

Accessibility & contrast

On white

1.73

#ADD33F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.17

#ADD33F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ADD33F

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ADD33F	#FFFFFF	#000000	##000000
##ADD33F	1.00	1.73	12.17	12.17
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.17	21.00	1.00	1.00
##000000	12.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC626

Deuteranopia (green-blind)

#DAC54B

Tritanopia (blue-blind)

#B6C9B6

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #add33f;
/* rgb */ color: rgb(173, 211, 63);
/* oklch */ color: oklch(81.2% 0.175 122.9);

Tailwind

colors: {
  custom: {
    50: '#c9e07d',
    500: '#add33f',
    950: '#000000',
  },
}

SCSS

$custom: #add33f;
$custom-light: #c9e07d;
$custom-dark: #000000;

JSON

{
  "hex": "#add33f",
  "rgb": {
    "r": 173,
    "g": 211,
    "b": 63
  },
  "hsl": {
    "h": 75.405,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.8123,
    "c": 0.17473,
    "h": 122.9
  },
  "luminance": 0.55832
}

Semantic roles & 50–950 ramp

primary

#ADD33F

secondary

#483383

accent

#42E66C

background

#FEFEFB

surface

#FBFCF2

border

#D4D5CC

text

#14150A

muted

#83847D

Preview Lab

Preview with #ADD33F

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

Preview Lab → · Contrast checker → · Palette generator →