#63BC2B#63BC2B

#63BC2B is a light, vivid yellow-green. Relative luminance 0.388; OKLCH L 71.2% C 0.195 H 136.3°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#63BC2B
RGB	rgb(99, 188, 43)
HSL	hsl(97, 63%, 45%)
HSV	hsv(97, 77%, 74%)
CMYK	cmyk(47.3%, 0%, 77.1%, 26.3%)
CIE-LAB	lab(68.60, -50.55, 60.28)
CIE-LCH	lch(68.60, 78.67, 129.98°)
OKLab	oklab(71.25% -0.1407 0.1343)
OKLCH	oklch(71.25% 0.195 136.3)
XYZ	xyz(23.5642, 38.7920, 8.5309)
Luminance	0.3879 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BC2B #842BBC

analogous

#ABBC2B #63BC2B #2BBC3C

triadic

#63BC2B #2B63BC #BC2B63

tetradic

#63BC2B #2BABBC #842BBC #BC3C2B

square

#63BC2B #2BABBC #842BBC #BC3C2B

split-complementary

#63BC2B #3C2BBC #BC2BAB

monochromatic

#2F5814 #498A20 #63BC2B #83D64E #A6E280

Accessibility & contrast

On white

2.40

#63BC2B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#63BC2B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BC2B

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BC2B	#FFFFFF	#000000	##000000
##63BC2B	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AC02

Deuteranopia (green-blind)

#B7A53B

Tritanopia (blue-blind)

#5FB5A1

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63bc2b;
/* rgb */ color: rgb(99, 188, 43);
/* oklch */ color: oklch(71.2% 0.195 136.3);

Tailwind

colors: {
  custom: {
    50: '#97d170',
    500: '#63bc2b',
    950: '#000000',
  },
}

SCSS

$custom: #63bc2b;
$custom-light: #97d170;
$custom-dark: #000000;

JSON

{
  "hex": "#63bc2b",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 43
  },
  "hsl": {
    "h": 96.828,
    "s": 62.771,
    "l": 45.294
  },
  "oklch": {
    "l": 0.71249,
    "c": 0.19452,
    "h": 136.3
  },
  "luminance": 0.38794
}

Semantic roles & 50–950 ramp

primary

#63BC2B

secondary

#AB78CB

accent

#42E6A7

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1408

muted

#7E827B

Preview Lab

Preview with #63BC2B

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

Preview Lab → · Contrast checker → · Palette generator →