#63BC33#63BC33

#63BC33 is a light, vivid yellow-green. Relative luminance 0.389; OKLCH L 71.3% C 0.190 H 136.9°. Best body text is #000000 at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#63BC33
RGB	rgb(99, 188, 51)
HSL	hsl(99, 57%, 47%)
HSV	hsv(99, 73%, 74%)
CMYK	cmyk(47.3%, 0%, 72.9%, 26.3%)
CIE-LAB	lab(68.65, -50.04, 57.61)
CIE-LCH	lch(68.65, 76.31, 130.98°)
OKLab	oklab(71.3% -0.1388 0.1298)
OKLCH	oklch(71.3% 0.19 136.9)
XYZ	xyz(23.7256, 38.8565, 9.3812)
Luminance	0.3886 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BC33 #8C33BC

analogous

#A8BC33 #63BC33 #33BC48

triadic

#63BC33 #3363BC #BC3363

tetradic

#63BC33 #33A8BC #8C33BC #BC4833

square

#63BC33 #33A8BC #8C33BC #BC4833

split-complementary

#63BC33 #4833BC #BC33A8

monochromatic

#305C19 #4A8C26 #63BC33 #84D25A #A8DF8A

Accessibility & contrast

On white

2.39

#63BC33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.77

#63BC33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BC33

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BC33	#FFFFFF	#000000	##000000
##63BC33	1.00	2.39	8.77	8.77
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.77	21.00	1.00	1.00
##000000	8.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AC1A

Deuteranopia (green-blind)

#B7A541

Tritanopia (blue-blind)

#5EB5A1

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63bc33;
/* rgb */ color: rgb(99, 188, 51);
/* oklch */ color: oklch(71.3% 0.190 136.9);

Tailwind

colors: {
  custom: {
    50: '#97d173',
    500: '#63bc33',
    950: '#000000',
  },
}

SCSS

$custom: #63bc33;
$custom-light: #97d173;
$custom-dark: #000000;

JSON

{
  "hex": "#63bc33",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 51
  },
  "hsl": {
    "h": 98.978,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.71303,
    "c": 0.19008,
    "h": 136.9
  },
  "luminance": 0.38858
}

Semantic roles & 50–950 ramp

primary

#63BC33

secondary

#B081C9

accent

#47E1AB

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #63BC33

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

Preview Lab → · Contrast checker → · Palette generator →