#63CDE9#63CDE9

#63CDE9 is a light, moderate cyan. Relative luminance 0.522; OKLCH L 79.6% C 0.105 H 217.6°. Best body text is #000000 at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#63CDE9
RGB	rgb(99, 205, 233)
HSL	hsl(193, 75%, 65%)
HSV	hsv(193, 58%, 91%)
CMYK	cmyk(57.5%, 12%, 0%, 8.6%)
CIE-LAB	lab(77.40, -22.71, -23.09)
CIE-LCH	lch(77.40, 32.39, 225.48°)
OKLab	oklab(79.62% -0.0832 -0.0641)
OKLCH	oklch(79.62% 0.105 217.6)
XYZ	xyz(41.6790, 52.1944, 84.9531)
Luminance	0.5220 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CDE9 #E97F63

analogous

#63E9C2 #63CDE9 #638AE9

triadic

#63CDE9 #E963CD #CDE963

tetradic

#63CDE9 #C263E9 #E97F63 #8AE963

square

#63CDE9 #C263E9 #E97F63 #8AE963

split-complementary

#63CDE9 #E9638A #E9C263

monochromatic

#1A97B8 #2DBCE1 #63CDE9 #99DEF1 #CEEFF8

Accessibility & contrast

On white

1.84

#63CDE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.44

#63CDE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CDE9

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CDE9	#FFFFFF	#000000	##000000
##63CDE9	1.00	1.84	11.44	11.44
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.44	21.00	1.00	1.00
##000000	11.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC8EB

Deuteranopia (green-blind)

#A7B9E9

Tritanopia (blue-blind)

#00D7D6

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #63cde9;
/* rgb */ color: rgb(99, 205, 233);
/* oklch */ color: oklch(79.6% 0.105 217.6);

Tailwind

colors: {
  custom: {
    50: '#9adcf0',
    500: '#63cde9',
    950: '#000000',
  },
}

SCSS

$custom: #63cde9;
$custom-light: #9adcf0;
$custom-dark: #000000;

JSON

{
  "hex": "#63cde9",
  "rgb": {
    "r": 99,
    "g": 205,
    "b": 233
  },
  "hsl": {
    "h": 192.537,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.79615,
    "c": 0.105,
    "h": 217.6
  },
  "luminance": 0.52198
}

Semantic roles & 50–950 ramp

primary

#63CDE9

secondary

#B75339

accent

#380ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CDE9

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

Preview Lab → · Contrast checker → · Palette generator →