#63D02B#63D02B

#63D02B is a light, highly saturated yellow-green. Relative luminance 0.479; OKLCH L 76.3% C 0.218 H 137.7°. Best body text is #000000 at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#63D02B
RGB	rgb(99, 208, 43)
HSL	hsl(100, 66%, 49%)
HSV	hsv(100, 79%, 82%)
CMYK	cmyk(52.4%, 0%, 79.3%, 18.4%)
CIE-LAB	lab(74.78, -58.08, 66.13)
CIE-LCH	lch(74.78, 88.01, 131.29°)
OKLab	oklab(76.34% -0.161 0.1465)
OKLCH	oklch(76.34% 0.218 137.7)
XYZ	xyz(28.1366, 47.9367, 10.0551)
Luminance	0.4794 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D02B #982BD0

analogous

#B6D02B #63D02B #2BD045

triadic

#63D02B #2B63D0 #D02B63

tetradic

#63D02B #2BB6D0 #982BD0 #D0452B

square

#63D02B #2BB6D0 #982BD0 #D0452B

split-complementary

#63D02B #452BD0 #D02BB6

monochromatic

#336B16 #4B9D21 #63D02B #87DD5B #ACE88E

Accessibility & contrast

On white

1.98

#63D02B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.59

#63D02B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D02B

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D02B	#FFFFFF	#000000	##000000
##63D02B	1.00	1.98	10.59	10.59
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.59	21.00	1.00	1.00
##000000	10.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7BE00

Deuteranopia (green-blind)

#C9B53F

Tritanopia (blue-blind)

#5BC9B2

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63d02b;
/* rgb */ color: rgb(99, 208, 43);
/* oklch */ color: oklch(76.3% 0.218 137.7);

Tailwind

colors: {
  custom: {
    50: '#9adf72',
    500: '#63d02b',
    950: '#000000',
  },
}

SCSS

$custom: #63d02b;
$custom-light: #9adf72;
$custom-dark: #000000;

JSON

{
  "hex": "#63d02b",
  "rgb": {
    "r": 99,
    "g": 208,
    "b": 43
  },
  "hsl": {
    "h": 99.636,
    "s": 65.737,
    "l": 49.216
  },
  "oklch": {
    "l": 0.7634,
    "c": 0.21765,
    "h": 137.7
  },
  "luminance": 0.47939
}

Semantic roles & 50–950 ramp

primary

#63D02B

secondary

#B885D2

accent

#3FE9AF

background

#FAFDF7

surface

#F4FBED

border

#CED4C8

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #63D02B

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

Preview Lab → · Contrast checker → · Palette generator →