#63B31E#63B31E

#63B31E is a light, vivid yellow-green. Relative luminance 0.350; OKLCH L 68.9% C 0.190 H 134.8°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#63B31E
RGB	rgb(99, 179, 30)
HSL	hsl(92, 71%, 41%)
HSV	hsv(92, 83%, 70%)
CMYK	cmyk(44.7%, 0%, 83.2%, 29.8%)
CIE-LAB	lab(65.74, -47.67, 61.39)
CIE-LCH	lch(65.74, 77.72, 127.83°)
OKLab	oklab(68.88% -0.1337 0.1347)
OKLCH	oklch(68.88% 0.19 134.8)
XYZ	xyz(21.4996, 34.9853, 6.8480)
Luminance	0.3499 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B31E #6E1EB3

analogous

#ADB31E #63B31E #1EB324

triadic

#63B31E #1E63B3 #B31E63

tetradic

#63B31E #1EADB3 #6E1EB3 #B3241E

square

#63B31E #1EADB3 #6E1EB3 #B3241E

split-complementary

#63B31E #241EB3 #B31EAD

monochromatic

#294A0C #467F15 #63B31E #81DD32 #A1E566

Accessibility & contrast

On white

2.63

#63B31E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.00

#63B31E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B31E

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B31E	#FFFFFF	#000000	##000000
##63B31E	1.00	2.63	8.00	8.00
#FFFFFF	2.63	1.00	21.00	21.00
#000000	8.00	21.00	1.00	1.00
##000000	8.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#AF9D31

Tritanopia (blue-blind)

#61AC98

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63b31e;
/* rgb */ color: rgb(99, 179, 30);
/* oklch */ color: oklch(68.9% 0.190 134.8);

Tailwind

colors: {
  custom: {
    50: '#97ca69',
    500: '#63b31e',
    950: '#000000',
  },
}

SCSS

$custom: #63b31e;
$custom-light: #97ca69;
$custom-dark: #000000;

JSON

{
  "hex": "#63b31e",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 30
  },
  "hsl": {
    "h": 92.215,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.68878,
    "c": 0.1898,
    "h": 134.8
  },
  "luminance": 0.34987
}

Semantic roles & 50–950 ramp

primary

#63B31E

secondary

#9A62CB

accent

#3AEE9B

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #63B31E

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

Preview Lab → · Contrast checker → · Palette generator →