#63C8FF#63C8FF

#63C8FF is a light, vivid cyan. Relative luminance 0.512; OKLCH L 79.4% C 0.122 H 235.0°. Best body text is #000000 at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#63C8FF
RGB	rgb(99, 200, 255)
HSL	hsl(201, 100%, 69%)
HSV	hsv(201, 61%, 100%)
CMYK	cmyk(61.2%, 21.6%, 0%, 0%)
CIE-LAB	lab(76.79, -13.61, -35.82)
CIE-LCH	lch(76.79, 38.32, 249.19°)
OKLab	oklab(79.39% -0.0701 -0.1003)
OKLCH	oklch(79.39% 0.122 235)
XYZ	xyz(43.8429, 51.1769, 102.1559)
Luminance	0.5118 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8FF #FF9A63

analogous

#63FFE8 #63C8FF #637AFF

triadic

#63C8FF #FF63C8 #C8FF63

tetradic

#63C8FF #E863FF #FF9A63 #7AFF63

square

#63C8FF #E863FF #FF9A63 #7AFF63

split-complementary

#63C8FF #FF637A #FFE863

monochromatic

#0096E8 #26B2FF #63C8FF #A0DEFF #DDF3FF

Accessibility & contrast

On white

1.87

#63C8FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.24

#63C8FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8FF

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8FF	#FFFFFF	#000000	##000000
##63C8FF	1.00	1.87	11.24	11.24
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.24	21.00	1.00	1.00
##000000	11.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEC6FF

Deuteranopia (green-blind)

#98B7FE

Tritanopia (blue-blind)

#00D6DA

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #63c8ff;
/* rgb */ color: rgb(99, 200, 255);
/* oklch */ color: oklch(79.4% 0.122 235.0);

Tailwind

colors: {
  custom: {
    50: '#9cd8ff',
    500: '#63c8ff',
    950: '#000000',
  },
}

SCSS

$custom: #63c8ff;
$custom-light: #9cd8ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8ff",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 255
  },
  "hsl": {
    "h": 201.154,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.79393,
    "c": 0.12238,
    "h": 235
  },
  "luminance": 0.51181
}

Semantic roles & 50–950 ramp

primary

#63C8FF

secondary

#DA6A2C

accent

#5100E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1418

muted

#808386

Preview Lab

Preview with #63C8FF

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

Preview Lab → · Contrast checker → · Palette generator →