#63B331#63B331

#63B331 is a light, vivid yellow-green. Relative luminance 0.351; OKLCH L 69.0% C 0.180 H 136.0°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#63B331
RGB	rgb(99, 179, 49)
HSL	hsl(97, 57%, 45%)
HSV	hsv(97, 73%, 70%)
CMYK	cmyk(44.7%, 0%, 72.6%, 29.8%)
CIE-LAB	lab(65.84, -46.59, 55.51)
CIE-LCH	lch(65.84, 72.47, 130.01°)
OKLab	oklab(68.99% -0.1297 0.1252)
OKLCH	oklch(68.99% 0.18 136)
XYZ	xyz(21.8195, 35.1133, 8.5329)
Luminance	0.3512 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B331 #8131B3

analogous

#A4B331 #63B331 #31B340

triadic

#63B331 #3163B3 #B33163

tetradic

#63B331 #31A4B3 #8131B3 #B34031

square

#63B331 #31A4B3 #8131B3 #B34031

split-complementary

#63B331 #4031B3 #B331A4

monochromatic

#2E5317 #488324 #63B331 #82D052 #A5DD82

Accessibility & contrast

On white

2.62

#63B331 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#63B331 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B331

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B331	#FFFFFF	#000000	##000000
##63B331	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A41A

Deuteranopia (green-blind)

#AF9E3E

Tritanopia (blue-blind)

#60AC9A

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63b331;
/* rgb */ color: rgb(99, 179, 49);
/* oklch */ color: oklch(69.0% 0.180 136.0);

Tailwind

colors: {
  custom: {
    50: '#96ca71',
    500: '#63b331',
    950: '#000000',
  },
}

SCSS

$custom: #63b331;
$custom-light: #96ca71;
$custom-dark: #000000;

JSON

{
  "hex": "#63b331",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 49
  },
  "hsl": {
    "h": 96.923,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.68991,
    "c": 0.18021,
    "h": 136
  },
  "luminance": 0.35115
}

Semantic roles & 50–950 ramp

primary

#63B331

secondary

#A97AC6

accent

#48E0A6

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B331

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

Preview Lab → · Contrast checker → · Palette generator →