#63CCE9#63CCE9

#63CCE9 is a light, moderate cyan. Relative luminance 0.517; OKLCH L 79.4% C 0.105 H 218.5°. Best body text is #000000 at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#63CCE9
RGB	rgb(99, 204, 233)
HSL	hsl(193, 75%, 65%)
HSV	hsv(193, 58%, 91%)
CMYK	cmyk(57.5%, 12.4%, 0%, 8.6%)
CIE-LAB	lab(77.11, -22.20, -23.53)
CIE-LCH	lch(77.11, 32.35, 226.66°)
OKLab	oklab(79.39% -0.0821 -0.0653)
OKLCH	oklch(79.39% 0.105 218.5)
XYZ	xyz(41.4406, 51.7176, 84.8736)
Luminance	0.5172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CCE9 #E98063

analogous

#63E9C3 #63CCE9 #6389E9

triadic

#63CCE9 #E963CC #CCE963

tetradic

#63CCE9 #C363E9 #E98063 #89E963

square

#63CCE9 #C363E9 #E98063 #89E963

split-complementary

#63CCE9 #E96389 #E9C363

monochromatic

#1A96B8 #2DBAE1 #63CCE9 #99DEF1 #CEEFF8

Accessibility & contrast

On white

1.85

#63CCE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.34

#63CCE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CCE9

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CCE9	#FFFFFF	#000000	##000000
##63CCE9	1.00	1.85	11.34	11.34
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.34	21.00	1.00	1.00
##000000	11.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9C7EB

Deuteranopia (green-blind)

#A6B8E9

Tritanopia (blue-blind)

#00D6D5

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #63cce9;
/* rgb */ color: rgb(99, 204, 233);
/* oklch */ color: oklch(79.4% 0.105 218.5);

Tailwind

colors: {
  custom: {
    50: '#9adbf0',
    500: '#63cce9',
    950: '#000000',
  },
}

SCSS

$custom: #63cce9;
$custom-light: #9adbf0;
$custom-dark: #000000;

JSON

{
  "hex": "#63cce9",
  "rgb": {
    "r": 99,
    "g": 204,
    "b": 233
  },
  "hsl": {
    "h": 192.985,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.79386,
    "c": 0.10492,
    "h": 218.5
  },
  "luminance": 0.51722
}

Semantic roles & 50–950 ramp

primary

#63CCE9

secondary

#B75439

accent

#3A0ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CCE9

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

Preview Lab → · Contrast checker → · Palette generator →