#63BD31#63BD31

#63BD31 is a light, vivid yellow-green. Relative luminance 0.393; OKLCH L 71.5% C 0.192 H 136.8°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#63BD31
RGB	rgb(99, 189, 49)
HSL	hsl(99, 59%, 47%)
HSV	hsv(99, 74%, 74%)
CMYK	cmyk(47.6%, 0%, 74.1%, 25.9%)
CIE-LAB	lab(68.94, -50.57, 58.61)
CIE-LCH	lch(68.94, 77.41, 130.78°)
OKLab	oklab(71.54% -0.1404 0.1316)
OKLCH	oklch(71.54% 0.192 136.8)
XYZ	xyz(23.8969, 39.2680, 9.2254)
Luminance	0.3927 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BD31 #8B31BD

analogous

#A9BD31 #63BD31 #31BD45

triadic

#63BD31 #3163BD #BD3163

tetradic

#63BD31 #31A9BD #8B31BD #BD4531

square

#63BD31 #31A9BD #8B31BD #BD4531

split-complementary

#63BD31 #4531BD #BD31A9

monochromatic

#305C18 #4A8C24 #63BD31 #84D458 #A8E088

Accessibility & contrast

On white

2.37

#63BD31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#63BD31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BD31

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BD31	#FFFFFF	#000000	##000000
##63BD31	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD15

Deuteranopia (green-blind)

#B8A53F

Tritanopia (blue-blind)

#5EB6A2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63bd31;
/* rgb */ color: rgb(99, 189, 49);
/* oklch */ color: oklch(71.5% 0.192 136.8);

Tailwind

colors: {
  custom: {
    50: '#97d173',
    500: '#63bd31',
    950: '#000000',
  },
}

SCSS

$custom: #63bd31;
$custom-light: #97d173;
$custom-dark: #000000;

JSON

{
  "hex": "#63bd31",
  "rgb": {
    "r": 99,
    "g": 189,
    "b": 49
  },
  "hsl": {
    "h": 98.571,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.71544,
    "c": 0.19246,
    "h": 136.8
  },
  "luminance": 0.3927
}

Semantic roles & 50–950 ramp

primary

#63BD31

secondary

#B080CA

accent

#46E2AA

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #63BD31

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

Preview Lab → · Contrast checker → · Palette generator →