#63BF31#63BF31

#63BF31 is a light, vivid yellow-green. Relative luminance 0.401; OKLCH L 72.1% C 0.195 H 137.0°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#63BF31
RGB	rgb(99, 191, 49)
HSL	hsl(99, 59%, 47%)
HSV	hsv(99, 74%, 75%)
CMYK	cmyk(48.2%, 0%, 74.3%, 25.1%)
CIE-LAB	lab(69.57, -51.34, 59.23)
CIE-LCH	lch(69.57, 78.38, 130.92°)
OKLab	oklab(72.05% -0.1425 0.1329)
OKLCH	oklch(72.05% 0.195 137)
XYZ	xyz(24.3300, 40.1343, 9.3698)
Luminance	0.4014 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BF31 #8D31BF

analogous

#AABF31 #63BF31 #31BF46

triadic

#63BF31 #3163BF #BF3163

tetradic

#63BF31 #31AABF #8D31BF #BF4631

square

#63BF31 #31AABF #8D31BF #BF4631

split-complementary

#63BF31 #4631BF #BF31AA

monochromatic

#315E18 #4A8E25 #63BF31 #84D459 #A8E18A

Accessibility & contrast

On white

2.33

#63BF31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#63BF31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BF31

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BF31	#FFFFFF	#000000	##000000
##63BF31	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AF14

Deuteranopia (green-blind)

#B9A740

Tritanopia (blue-blind)

#5EB8A4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63bf31;
/* rgb */ color: rgb(99, 191, 49);
/* oklch */ color: oklch(72.1% 0.195 137.0);

Tailwind

colors: {
  custom: {
    50: '#98d373',
    500: '#63bf31',
    950: '#000000',
  },
}

SCSS

$custom: #63bf31;
$custom-light: #98d373;
$custom-dark: #000000;

JSON

{
  "hex": "#63bf31",
  "rgb": {
    "r": 99,
    "g": 191,
    "b": 49
  },
  "hsl": {
    "h": 98.873,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.72053,
    "c": 0.19487,
    "h": 137
  },
  "luminance": 0.40136
}

Semantic roles & 50–950 ramp

primary

#63BF31

secondary

#B181CB

accent

#45E2AB

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0E1409

muted

#7E837B

Preview Lab

Preview with #63BF31

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

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