#63E4FF#63E4FF

#63E4FF is a very light, moderate cyan. Relative luminance 0.654; OKLCH L 85.7% C 0.119 H 213.8°. Best body text is #000000 at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#63E4FF
RGB	rgb(99, 228, 255)
HSL	hsl(190, 100%, 69%)
HSV	hsv(190, 61%, 100%)
CMYK	cmyk(61.2%, 10.6%, 0%, 0%)
CIE-LAB	lab(84.67, -27.79, -23.73)
CIE-LCH	lch(84.67, 36.54, 220.50°)
OKLab	oklab(85.69% -0.0986 -0.0659)
OKLCH	oklch(85.69% 0.119 213.8)
XYZ	xyz(50.9316, 65.3542, 104.5188)
Luminance	0.6536 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63E4FF #FF7E63

analogous

#63FFCC #63E4FF #6396FF

triadic

#63E4FF #FF63E4 #E4FF63

tetradic

#63E4FF #CC63FF #FF7E63 #96FF63

square

#63E4FF #CC63FF #FF7E63 #96FF63

split-complementary

#63E4FF #FF6396 #FFCC63

monochromatic

#00C0E8 #26D9FF #63E4FF #A0EFFF #DDF9FF

Accessibility & contrast

On white

1.49

#63E4FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.07

#63E4FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63E4FF

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63E4FF	#FFFFFF	#000000	##000000
##63E4FF	1.00	1.49	14.07	14.07
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.07	21.00	1.00	1.00
##000000	14.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0DDFF

Deuteranopia (green-blind)

#B9CCFF

Tritanopia (blue-blind)

#00EFEC

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #63e4ff;
/* rgb */ color: rgb(99, 228, 255);
/* oklch */ color: oklch(85.7% 0.119 213.8);

Tailwind

colors: {
  custom: {
    50: '#9eecff',
    500: '#63e4ff',
    950: '#000000',
  },
}

SCSS

$custom: #63e4ff;
$custom-light: #9eecff;
$custom-dark: #000000;

JSON

{
  "hex": "#63e4ff",
  "rgb": {
    "r": 99,
    "g": 228,
    "b": 255
  },
  "hsl": {
    "h": 190.385,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.8569,
    "c": 0.11855,
    "h": 213.8
  },
  "luminance": 0.65359
}

Semantic roles & 50–950 ramp

primary

#63E4FF

secondary

#DA4A2C

accent

#2800E6

background

#FDFEFF

surface

#F7FDFF

border

#D0D5D7

text

#101618

muted

#818486

Preview Lab

Preview with #63E4FF

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

Preview Lab → · Contrast checker → · Palette generator →