#63B318#63B318

#63B318 is a light, vivid yellow-green. Relative luminance 0.350; OKLCH L 68.9% C 0.192 H 134.5°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#63B318
RGB	rgb(99, 179, 24)
HSL	hsl(91, 76%, 40%)
HSV	hsv(91, 87%, 70%)
CMYK	cmyk(44.7%, 0%, 86.6%, 29.8%)
CIE-LAB	lab(65.72, -47.90, 62.79)
CIE-LCH	lch(65.72, 78.98, 127.34°)
OKLab	oklab(68.85% -0.1346 0.1368)
OKLCH	oklch(68.85% 0.192 134.5)
XYZ	xyz(21.4301, 34.9575, 6.4823)
Luminance	0.3496 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B318 #6818B3

analogous

#B0B318 #63B318 #18B31B

triadic

#63B318 #1863B3 #B31863

tetradic

#63B318 #18B0B3 #6818B3 #B31B18

square

#63B318 #18B0B3 #6818B3 #B31B18

split-complementary

#63B318 #1B18B3 #B318B0

monochromatic

#27470A #457D11 #63B318 #81E226 #A0E95C

Accessibility & contrast

On white

2.63

#63B318 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.99

#63B318 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B318

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B318	#FFFFFF	#000000	##000000
##63B318	1.00	2.63	7.99	7.99
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.99	21.00	1.00	1.00
##000000	7.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#B09D2D

Tritanopia (blue-blind)

#61AC98

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63b318;
/* rgb */ color: rgb(99, 179, 24);
/* oklch */ color: oklch(68.9% 0.192 134.5);

Tailwind

colors: {
  custom: {
    50: '#97ca67',
    500: '#63b318',
    950: '#000000',
  },
}

SCSS

$custom: #63b318;
$custom-light: #97ca67;
$custom-dark: #000000;

JSON

{
  "hex": "#63b318",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 24
  },
  "hsl": {
    "h": 90.968,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.68853,
    "c": 0.19197,
    "h": 134.5
  },
  "luminance": 0.34959
}

Semantic roles & 50–950 ramp

primary

#63B318

secondary

#955ACD

accent

#35F397

background

#F9FCF6

surface

#F2F8EB

border

#CCD1C6

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #63B318

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

Preview Lab → · Contrast checker → · Palette generator →