#63EF8B#63EF8B

#63EF8B is a very light, vivid green. Relative luminance 0.662; OKLCH L 85.2% C 0.184 H 150.1°. Best body text is #000000 at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#63EF8B
RGB	rgb(99, 239, 139)
HSL	hsl(137, 81%, 66%)
HSV	hsv(137, 59%, 94%)
CMYK	cmyk(58.6%, 0%, 41.8%, 6.3%)
CIE-LAB	lab(85.12, -59.10, 37.26)
CIE-LCH	lch(85.12, 69.86, 147.77°)
OKLab	oklab(85.16% -0.1598 0.092)
OKLCH	oklch(85.16% 0.184 150.1)
XYZ	xyz(40.6693, 66.2459, 35.0646)
Luminance	0.6625 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63EF8B #EF63C7

analogous

#81EF63 #63EF8B #63EFD1

triadic

#63EF8B #8B63EF #EF8B63

tetradic

#63EF8B #6381EF #EF63C7 #EFD163

square

#63EF8B #6381EF #EF63C7 #EFD163

split-complementary

#63EF8B #D163EF #EF6381

monochromatic

#14C446 #2BE962 #63EF8B #9BF5B4 #D2FADE

Accessibility & contrast

On white

1.47

#63EF8B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.25

#63EF8B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63EF8B

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63EF8B	#FFFFFF	#000000	##000000
##63EF8B	1.00	1.47	14.25	14.25
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.25	21.00	1.00	1.00
##000000	14.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0DC84

Deuteranopia (green-blind)

#DED092

Tritanopia (blue-blind)

#3BEBD6

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #63ef8b;
/* rgb */ color: rgb(99, 239, 139);
/* oklch */ color: oklch(85.2% 0.184 150.1);

Tailwind

colors: {
  custom: {
    50: '#9bf5ae',
    500: '#63ef8b',
    950: '#000000',
  },
}

SCSS

$custom: #63ef8b;
$custom-light: #9bf5ae;
$custom-dark: #000000;

JSON

{
  "hex": "#63ef8b",
  "rgb": {
    "r": 99,
    "g": 239,
    "b": 139
  },
  "hsl": {
    "h": 137.143,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.85155,
    "c": 0.18441,
    "h": 150.1
  },
  "luminance": 0.6625
}

Semantic roles & 50–950 ramp

primary

#63EF8B

secondary

#C13599

accent

#08A1DE

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #63EF8B

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

Preview Lab → · Contrast checker → · Palette generator →