#63B428#63B428

#63B428 is a light, vivid yellow-green. Relative luminance 0.354; OKLCH L 69.2% C 0.186 H 135.4°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#63B428
RGB	rgb(99, 180, 40)
HSL	hsl(95, 64%, 43%)
HSV	hsv(95, 78%, 71%)
CMYK	cmyk(45%, 0%, 77.8%, 29.4%)
CIE-LAB	lab(66.10, -47.57, 58.85)
CIE-LCH	lch(66.10, 75.67, 128.95°)
OKLab	oklab(69.19% -0.1329 0.1308)
OKLCH	oklch(69.19% 0.186 135.4)
XYZ	xyz(21.8493, 35.4470, 7.6977)
Luminance	0.3545 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B428 #7928B4

analogous

#A9B428 #63B428 #28B433

triadic

#63B428 #2863B4 #B42863

tetradic

#63B428 #28A9B4 #7928B4 #B43328

square

#63B428 #28A9B4 #7928B4 #B43328

split-complementary

#63B428 #3328B4 #B428A9

monochromatic

#2C5012 #47821D #63B428 #81D544 #A3E176

Accessibility & contrast

On white

2.60

#63B428 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#63B428 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B428

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B428	#FFFFFF	#000000	##000000
##63B428	1.00	2.60	8.09	8.09
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA500

Deuteranopia (green-blind)

#B09E37

Tritanopia (blue-blind)

#60AD9A

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63b428;
/* rgb */ color: rgb(99, 180, 40);
/* oklch */ color: oklch(69.2% 0.186 135.4);

Tailwind

colors: {
  custom: {
    50: '#97cb6d',
    500: '#63b428',
    950: '#000000',
  },
}

SCSS

$custom: #63b428;
$custom-light: #97cb6d;
$custom-dark: #000000;

JSON

{
  "hex": "#63b428",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 40
  },
  "hsl": {
    "h": 94.714,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.69187,
    "c": 0.18648,
    "h": 135.4
  },
  "luminance": 0.35448
}

Semantic roles & 50–950 ramp

primary

#63B428

secondary

#A370C8

accent

#41E7A1

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B428

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

Preview Lab → · Contrast checker → · Palette generator →