#63B228#63B228

#63B228 is a light, vivid yellow-green. Relative luminance 0.346; OKLCH L 68.7% C 0.184 H 135.3°. Best body text is #000000 at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#63B228
RGB	rgb(99, 178, 40)
HSL	hsl(94, 63%, 43%)
HSV	hsv(94, 78%, 70%)
CMYK	cmyk(44.4%, 0%, 77.5%, 30.2%)
CIE-LAB	lab(65.47, -46.76, 58.25)
CIE-LCH	lch(65.47, 74.70, 128.76°)
OKLab	oklab(68.68% -0.1307 0.1296)
OKLCH	oklch(68.68% 0.184 135.3)
XYZ	xyz(21.4485, 34.6454, 7.5641)
Luminance	0.3465 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B228 #7728B2

analogous

#A8B228 #63B228 #28B232

triadic

#63B228 #2863B2 #B22863

tetradic

#63B228 #28A8B2 #7728B2 #B23228

square

#63B228 #28A8B2 #7728B2 #B23228

split-complementary

#63B228 #3228B2 #B228A8

monochromatic

#2B4E12 #47801D #63B228 #81D543 #A2E075

Accessibility & contrast

On white

2.65

#63B228 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.93

#63B228 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B228

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B228	#FFFFFF	#000000	##000000
##63B228	1.00	2.65	7.93	7.93
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.93	21.00	1.00	1.00
##000000	7.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A301

Deuteranopia (green-blind)

#AE9D37

Tritanopia (blue-blind)

#61AB98

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #63b228;
/* rgb */ color: rgb(99, 178, 40);
/* oklch */ color: oklch(68.7% 0.184 135.3);

Tailwind

colors: {
  custom: {
    50: '#96c96d',
    500: '#63b228',
    950: '#000000',
  },
}

SCSS

$custom: #63b228;
$custom-light: #96c96d;
$custom-dark: #000000;

JSON

{
  "hex": "#63b228",
  "rgb": {
    "r": 99,
    "g": 178,
    "b": 40
  },
  "hsl": {
    "h": 94.348,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.68675,
    "c": 0.18407,
    "h": 135.3
  },
  "luminance": 0.34647
}

Semantic roles & 50–950 ramp

primary

#63B228

secondary

#A16FC7

accent

#41E6A0

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B228

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

Preview Lab → · Contrast checker → · Palette generator →