#63B031#63B031

#63B031 is a light, vivid yellow-green. Relative luminance 0.339; OKLCH L 68.2% C 0.176 H 135.7°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#63B031
RGB	rgb(99, 176, 49)
HSL	hsl(96, 56%, 44%)
HSV	hsv(96, 72%, 69%)
CMYK	cmyk(43.8%, 0%, 72.2%, 31%)
CIE-LAB	lab(64.90, -45.37, 54.57)
CIE-LCH	lch(64.90, 70.96, 129.74°)
OKLab	oklab(68.23% -0.1264 0.1232)
OKLCH	oklch(68.23% 0.176 135.7)
XYZ	xyz(21.2248, 33.9238, 8.3347)
Luminance	0.3392 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B031 #7E31B0

analogous

#A3B031 #63B031 #31B03F

triadic

#63B031 #3163B0 #B03163

tetradic

#63B031 #31A3B0 #7E31B0 #B03F31

square

#63B031 #31A3B0 #7E31B0 #B03F31

split-complementary

#63B031 #3F31B0 #B031A3

monochromatic

#2D5016 #488024 #63B031 #82CE50 #A4DC80

Accessibility & contrast

On white

2.70

#63B031 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#63B031 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B031

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B031	#FFFFFF	#000000	##000000
##63B031	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A11B

Deuteranopia (green-blind)

#AC9B3D

Tritanopia (blue-blind)

#60A997

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #63b031;
/* rgb */ color: rgb(99, 176, 49);
/* oklch */ color: oklch(68.2% 0.176 135.7);

Tailwind

colors: {
  custom: {
    50: '#96c871',
    500: '#63b031',
    950: '#000000',
  },
}

SCSS

$custom: #63b031;
$custom-light: #96c871;
$custom-dark: #000000;

JSON

{
  "hex": "#63b031",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 49
  },
  "hsl": {
    "h": 96.378,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.68225,
    "c": 0.17647,
    "h": 135.7
  },
  "luminance": 0.33925
}

Semantic roles & 50–950 ramp

primary

#63B031

secondary

#A778C5

accent

#48E0A4

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B031

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

Preview Lab → · Contrast checker → · Palette generator →