#63D0EE#63D0EE

#63D0EE is a light, moderate cyan. Relative luminance 0.539; OKLCH L 80.5% C 0.108 H 218.5°. Best body text is #000000 at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#63D0EE
RGB	rgb(99, 208, 238)
HSL	hsl(193, 80%, 66%)
HSV	hsv(193, 58%, 93%)
CMYK	cmyk(58.4%, 12.6%, 0%, 6.7%)
CIE-LAB	lab(78.42, -22.78, -24.21)
CIE-LCH	lch(78.42, 33.24, 226.74°)
OKLab	oklab(80.49% -0.0844 -0.0672)
OKLCH	oklch(80.49% 0.108 218.5)
XYZ	xyz(43.1279, 53.9332, 89.0097)
Luminance	0.5394 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D0EE #EE8163

analogous

#63EEC7 #63D0EE #638AEE

triadic

#63D0EE #EE63D0 #D0EE63

tetradic

#63D0EE #C763EE #EE8163 #8AEE63

square

#63D0EE #C763EE #EE8163 #8AEE63

split-complementary

#63D0EE #EE638A #EEC763

monochromatic

#159CC2 #2CBFE8 #63D0EE #9AE1F4 #D1F1FA

Accessibility & contrast

On white

1.78

#63D0EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.79

#63D0EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D0EE

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D0EE	#FFFFFF	#000000	##000000
##63D0EE	1.00	1.78	11.79	11.79
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.79	21.00	1.00	1.00
##000000	11.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDCBF0

Deuteranopia (green-blind)

#A8BBEE

Tritanopia (blue-blind)

#00DAD9

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #63d0ee;
/* rgb */ color: rgb(99, 208, 238);
/* oklch */ color: oklch(80.5% 0.108 218.5);

Tailwind

colors: {
  custom: {
    50: '#9bdef3',
    500: '#63d0ee',
    950: '#000000',
  },
}

SCSS

$custom: #63d0ee;
$custom-light: #9bdef3;
$custom-dark: #000000;

JSON

{
  "hex": "#63d0ee",
  "rgb": {
    "r": 99,
    "g": 208,
    "b": 238
  },
  "hsl": {
    "h": 192.95,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.80493,
    "c": 0.10794,
    "h": 218.5
  },
  "luminance": 0.53937
}

Semantic roles & 50–950 ramp

primary

#63D0EE

secondary

#C05336

accent

#3709DD

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D0EE

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

Preview Lab → · Contrast checker → · Palette generator →