#63B131#63B131

#63B131 is a light, vivid yellow-green. Relative luminance 0.343; OKLCH L 68.5% C 0.178 H 135.8°. Best body text is #000000 at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#63B131
RGB	rgb(99, 177, 49)
HSL	hsl(97, 57%, 44%)
HSV	hsv(97, 72%, 69%)
CMYK	cmyk(44.1%, 0%, 72.3%, 30.6%)
CIE-LAB	lab(65.21, -45.78, 54.88)
CIE-LCH	lch(65.21, 71.47, 129.83°)
OKLab	oklab(68.48% -0.1275 0.1238)
OKLCH	oklch(68.48% 0.178 135.8)
XYZ	xyz(21.4216, 34.3174, 8.4003)
Luminance	0.3432 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B131 #7F31B1

analogous

#A3B131 #63B131 #31B13F

triadic

#63B131 #3163B1 #B13163

tetradic

#63B131 #31A3B1 #7F31B1 #B13F31

square

#63B131 #31A3B1 #7F31B1 #B13F31

split-complementary

#63B131 #3F31B1 #B131A3

monochromatic

#2D5116 #488124 #63B131 #82CF51 #A4DC80

Accessibility & contrast

On white

2.67

#63B131 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.86

#63B131 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B131

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B131	#FFFFFF	#000000	##000000
##63B131	1.00	2.67	7.86	7.86
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.86	21.00	1.00	1.00
##000000	7.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A21B

Deuteranopia (green-blind)

#AD9C3D

Tritanopia (blue-blind)

#60AA98

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #63b131;
/* rgb */ color: rgb(99, 177, 49);
/* oklch */ color: oklch(68.5% 0.178 135.8);

Tailwind

colors: {
  custom: {
    50: '#96c971',
    500: '#63b131',
    950: '#000000',
  },
}

SCSS

$custom: #63b131;
$custom-light: #96c971;
$custom-dark: #000000;

JSON

{
  "hex": "#63b131",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 49
  },
  "hsl": {
    "h": 96.563,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.6848,
    "c": 0.17772,
    "h": 135.8
  },
  "luminance": 0.34319
}

Semantic roles & 50–950 ramp

primary

#63B131

secondary

#A779C5

accent

#48E0A5

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B131

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

Preview Lab → · Contrast checker → · Palette generator →