#63C728#63C728

#63C728 is a light, highly saturated yellow-green. Relative luminance 0.437; OKLCH L 74.0% C 0.209 H 137.0°. Best body text is #000000 at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#63C728
RGB	rgb(99, 199, 40)
HSL	hsl(98, 67%, 47%)
HSV	hsv(98, 80%, 78%)
CMYK	cmyk(50.3%, 0%, 79.9%, 22%)
CIE-LAB	lab(71.99, -54.91, 64.38)
CIE-LCH	lch(71.99, 84.62, 130.46°)
OKLab	oklab(74.04% -0.1526 0.1424)
OKLCH	oklch(74.04% 0.209 137)
XYZ	xyz(25.9512, 43.6508, 9.0650)
Luminance	0.4365 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C728 #8C28C7

analogous

#B3C728 #63C728 #28C73D

triadic

#63C728 #2863C7 #C72863

tetradic

#63C728 #28B3C7 #8C28C7 #C73D28

square

#63C728 #28B3C7 #8C28C7 #C73D28

split-complementary

#63C728 #3D28C7 #C728B3

monochromatic

#306114 #4A941E #63C728 #84DC50 #A8E683

Accessibility & contrast

On white

2.16

#63C728 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.73

#63C728 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C728

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C728	#FFFFFF	#000000	##000000
##63C728	1.00	2.16	9.73	9.73
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.73	21.00	1.00	1.00
##000000	9.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB600

Deuteranopia (green-blind)

#C1AD3B

Tritanopia (blue-blind)

#5DC0AA

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63c728;
/* rgb */ color: rgb(99, 199, 40);
/* oklch */ color: oklch(74.0% 0.209 137.0);

Tailwind

colors: {
  custom: {
    50: '#99d970',
    500: '#63c728',
    950: '#000000',
  },
}

SCSS

$custom: #63c728;
$custom-light: #99d970;
$custom-dark: #000000;

JSON

{
  "hex": "#63c728",
  "rgb": {
    "r": 99,
    "g": 199,
    "b": 40
  },
  "hsl": {
    "h": 97.736,
    "s": 66.527,
    "l": 46.863
  },
  "oklch": {
    "l": 0.74037,
    "c": 0.20876,
    "h": 137
  },
  "luminance": 0.43653
}

Semantic roles & 50–950 ramp

primary

#63C728

secondary

#B07CCF

accent

#3EE9AA

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1508

muted

#7F837B

Preview Lab

Preview with #63C728

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

Preview Lab → · Contrast checker → · Palette generator →