#63CA28#63CA28

#63CA28 is a light, highly saturated yellow-green. Relative luminance 0.450; OKLCH L 74.8% C 0.212 H 137.2°. Best body text is #000000 at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#63CA28
RGB	rgb(99, 202, 40)
HSL	hsl(98, 67%, 47%)
HSV	hsv(98, 80%, 79%)
CMYK	cmyk(51%, 0%, 80.2%, 20.8%)
CIE-LAB	lab(72.92, -56.03, 65.24)
CIE-LCH	lch(72.92, 86.00, 130.66°)
OKLab	oklab(74.8% -0.1556 0.1442)
OKLCH	oklch(74.8% 0.212 137.2)
XYZ	xyz(26.6483, 45.0449, 9.2974)
Luminance	0.4505 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CA28 #8F28CA

analogous

#B4CA28 #63CA28 #28CA3E

triadic

#63CA28 #2863CA #CA2863

tetradic

#63CA28 #28B4CA #8F28CA #CA3E28

square

#63CA28 #28B4CA #8F28CA #CA3E28

split-complementary

#63CA28 #3E28CA #CA28B4

monochromatic

#316414 #4A971E #63CA28 #85DD52 #A9E785

Accessibility & contrast

On white

2.10

#63CA28 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.01

#63CA28 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CA28

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CA28	#FFFFFF	#000000	##000000
##63CA28	1.00	2.10	10.01	10.01
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.01	21.00	1.00	1.00
##000000	10.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1B800

Deuteranopia (green-blind)

#C4B03B

Tritanopia (blue-blind)

#5CC3AD

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63ca28;
/* rgb */ color: rgb(99, 202, 40);
/* oklch */ color: oklch(74.8% 0.212 137.2);

Tailwind

colors: {
  custom: {
    50: '#99db70',
    500: '#63ca28',
    950: '#000000',
  },
}

SCSS

$custom: #63ca28;
$custom-light: #99db70;
$custom-dark: #000000;

JSON

{
  "hex": "#63ca28",
  "rgb": {
    "r": 99,
    "g": 202,
    "b": 40
  },
  "hsl": {
    "h": 98.148,
    "s": 66.942,
    "l": 47.451
  },
  "oklch": {
    "l": 0.74801,
    "c": 0.21218,
    "h": 137.2
  },
  "luminance": 0.45047
}

Semantic roles & 50–950 ramp

primary

#63CA28

secondary

#B27ED0

accent

#3EEAAB

background

#FAFDF7

surface

#F3FBED

border

#CDD4C8

text

#0F1508

muted

#7F837B

Preview Lab

Preview with #63CA28

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

Preview Lab → · Contrast checker → · Palette generator →