#63EF9B#63EF9B

#63EF9B is a very light, vivid green. Relative luminance 0.668; OKLCH L 85.4% C 0.170 H 154.1°. Best body text is #000000 at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#63EF9B
RGB	rgb(99, 239, 155)
HSL	hsl(144, 81%, 66%)
HSV	hsv(144, 59%, 94%)
CMYK	cmyk(58.6%, 0%, 35.1%, 6.3%)
CIE-LAB	lab(85.38, -56.36, 29.57)
CIE-LCH	lch(85.38, 63.64, 152.31°)
OKLab	oklab(85.45% -0.1529 0.0742)
OKLCH	oklch(85.45% 0.17 154.1)
XYZ	xyz(41.9251, 66.7482, 41.6783)
Luminance	0.6675 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63EF9B #EF63B7

analogous

#71EF63 #63EF9B #63EFE1

triadic

#63EF9B #9B63EF #EF9B63

tetradic

#63EF9B #6371EF #EF63B7 #EFE163

square

#63EF9B #6371EF #EF63B7 #EFE163

split-complementary

#63EF9B #E163EF #EF6371

monochromatic

#14C45A #2BE977 #63EF9B #9BF5BF #D2FAE2

Accessibility & contrast

On white

1.46

#63EF9B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.35

#63EF9B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63EF9B

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63EF9B	#FFFFFF	#000000	##000000
##63EF9B	1.00	1.46	14.35	14.35
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.35	21.00	1.00	1.00
##000000	14.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFDD96

Deuteranopia (green-blind)

#DCD0A0

Tritanopia (blue-blind)

#32ECD9

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #63ef9b;
/* rgb */ color: rgb(99, 239, 155);
/* oklch */ color: oklch(85.4% 0.170 154.1);

Tailwind

colors: {
  custom: {
    50: '#9bf5b9',
    500: '#63ef9b',
    950: '#000000',
  },
}

SCSS

$custom: #63ef9b;
$custom-light: #9bf5b9;
$custom-dark: #000000;

JSON

{
  "hex": "#63ef9b",
  "rgb": {
    "r": 99,
    "g": 239,
    "b": 155
  },
  "hsl": {
    "h": 144,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.85448,
    "c": 0.16995,
    "h": 154.1
  },
  "luminance": 0.66752
}

Semantic roles & 50–950 ramp

primary

#63EF9B

secondary

#C13589

accent

#0888DE

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #63EF9B

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

Preview Lab → · Contrast checker → · Palette generator →