#63B128#63B128

#63B128 is a light, vivid yellow-green. Relative luminance 0.343; OKLCH L 68.4% C 0.183 H 135.2°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#63B128
RGB	rgb(99, 177, 40)
HSL	hsl(94, 63%, 43%)
HSV	hsv(94, 77%, 69%)
CMYK	cmyk(44.1%, 0%, 77.4%, 30.6%)
CIE-LAB	lab(65.16, -46.36, 57.95)
CIE-LCH	lch(65.16, 74.21, 128.66°)
OKLab	oklab(68.42% -0.1296 0.129)
OKLCH	oklch(68.42% 0.183 135.2)
XYZ	xyz(21.2503, 34.2489, 7.4980)
Luminance	0.3425 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B128 #7628B1

analogous

#A7B128 #63B128 #28B132

triadic

#63B128 #2863B1 #B12863

tetradic

#63B128 #28A7B1 #7628B1 #B13228

square

#63B128 #28A7B1 #7628B1 #B13228

split-complementary

#63B128 #3228B1 #B128A7

monochromatic

#2B4D11 #477F1D #63B128 #81D442 #A2E074

Accessibility & contrast

On white

2.68

#63B128 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#63B128 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B128

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B128	#FFFFFF	#000000	##000000
##63B128	1.00	2.68	7.85	7.85
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A202

Deuteranopia (green-blind)

#AD9C37

Tritanopia (blue-blind)

#61AA97

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #63b128;
/* rgb */ color: rgb(99, 177, 40);
/* oklch */ color: oklch(68.4% 0.183 135.2);

Tailwind

colors: {
  custom: {
    50: '#96c96d',
    500: '#63b128',
    950: '#000000',
  },
}

SCSS

$custom: #63b128;
$custom-light: #96c96d;
$custom-dark: #000000;

JSON

{
  "hex": "#63b128",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 40
  },
  "hsl": {
    "h": 94.161,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.68419,
    "c": 0.18285,
    "h": 135.2
  },
  "luminance": 0.3425
}

Semantic roles & 50–950 ramp

primary

#63B128

secondary

#A16EC7

accent

#42E69F

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B128

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

Preview Lab → · Contrast checker → · Palette generator →