#63E1FB#63E1FB

#63E1FB is a very light, moderate cyan. Relative luminance 0.635; OKLCH L 84.9% C 0.116 H 213.5°. Best body text is #000000 at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#63E1FB
RGB	rgb(99, 225, 251)
HSL	hsl(190, 95%, 69%)
HSV	hsv(190, 61%, 98%)
CMYK	cmyk(60.6%, 10.4%, 0%, 1.6%)
CIE-LAB	lab(83.69, -27.47, -23.11)
CIE-LCH	lch(83.69, 35.89, 220.08°)
OKLab	oklab(84.86% -0.097 -0.0641)
OKLCH	oklch(84.86% 0.116 213.5)
XYZ	xyz(49.4763, 63.4630, 100.8902)
Luminance	0.6347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63E1FB #FB7D63

analogous

#63FBC9 #63E1FB #6395FB

triadic

#63E1FB #FB63E1 #E1FB63

tetradic

#63E1FB #C963FB #FB7D63 #95FB63

square

#63E1FB #C963FB #FB7D63 #95FB63

split-complementary

#63E1FB #FB6395 #FBC963

monochromatic

#06B9DE #27D6F9 #63E1FB #9FECFD #DAF8FE

Accessibility & contrast

On white

1.53

#63E1FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.69

#63E1FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63E1FB

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63E1FB	#FFFFFF	#000000	##000000
##63E1FB	1.00	1.53	13.69	13.69
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.69	21.00	1.00	1.00
##000000	13.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEDAFD

Deuteranopia (green-blind)

#B7C9FB

Tritanopia (blue-blind)

#00EBE9

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #63e1fb;
/* rgb */ color: rgb(99, 225, 251);
/* oklch */ color: oklch(84.9% 0.116 213.5);

Tailwind

colors: {
  custom: {
    50: '#9deafc',
    500: '#63e1fb',
    950: '#000000',
  },
}

SCSS

$custom: #63e1fb;
$custom-light: #9deafc;
$custom-dark: #000000;

JSON

{
  "hex": "#63e1fb",
  "rgb": {
    "r": 99,
    "g": 225,
    "b": 251
  },
  "hsl": {
    "h": 190.263,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.84859,
    "c": 0.11633,
    "h": 213.5
  },
  "luminance": 0.63468
}

Semantic roles & 50–950 ramp

primary

#63E1FB

secondary

#D54A2D

accent

#2700E6

background

#FCFEFF

surface

#F6FDFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #63E1FB

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

Preview Lab → · Contrast checker → · Palette generator →