#63B831#63B831

#63B831 is a light, vivid yellow-green. Relative luminance 0.372; OKLCH L 70.3% C 0.186 H 136.5°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#63B831
RGB	rgb(99, 184, 49)
HSL	hsl(98, 58%, 46%)
HSV	hsv(98, 73%, 72%)
CMYK	cmyk(46.2%, 0%, 73.4%, 27.8%)
CIE-LAB	lab(67.39, -48.60, 57.07)
CIE-LCH	lch(67.39, 74.96, 130.42°)
OKLab	oklab(70.27% -0.1351 0.1284)
OKLCH	oklch(70.27% 0.186 136.5)
XYZ	xyz(22.8398, 37.1539, 8.8731)
Luminance	0.3715 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B831 #8631B8

analogous

#A6B831 #63B831 #31B843

triadic

#63B831 #3163B8 #B83163

tetradic

#63B831 #31A6B8 #8631B8 #B84331

square

#63B831 #31A6B8 #8631B8 #B84331

split-complementary

#63B831 #4331B8 #B831A6

monochromatic

#2F5717 #498824 #63B831 #83D255 #A6DE85

Accessibility & contrast

On white

2.49

#63B831 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#63B831 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B831

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B831	#FFFFFF	#000000	##000000
##63B831	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA917

Deuteranopia (green-blind)

#B3A13E

Tritanopia (blue-blind)

#5FB19E

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #63b831;
/* rgb */ color: rgb(99, 184, 49);
/* oklch */ color: oklch(70.3% 0.186 136.5);

Tailwind

colors: {
  custom: {
    50: '#97ce72',
    500: '#63b831',
    950: '#000000',
  },
}

SCSS

$custom: #63b831;
$custom-light: #97ce72;
$custom-dark: #000000;

JSON

{
  "hex": "#63b831",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 49
  },
  "hsl": {
    "h": 97.778,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.70268,
    "c": 0.18638,
    "h": 136.5
  },
  "luminance": 0.37155
}

Semantic roles & 50–950 ramp

primary

#63B831

secondary

#AC7DC8

accent

#47E1A8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1408

muted

#7E827B

Preview Lab

Preview with #63B831

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

Preview Lab → · Contrast checker → · Palette generator →