#63D4EE#63D4EE

#63D4EE is a light, moderate cyan. Relative luminance 0.559; OKLCH L 81.4% C 0.108 H 215.1°. Best body text is #000000 at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#63D4EE
RGB	rgb(99, 212, 238)
HSL	hsl(191, 80%, 66%)
HSV	hsv(191, 58%, 93%)
CMYK	cmyk(58.4%, 10.9%, 0%, 6.7%)
CIE-LAB	lab(79.56, -24.78, -22.47)
CIE-LCH	lch(79.56, 33.45, 222.21°)
OKLab	oklab(81.41% -0.0886 -0.0623)
OKLCH	oklch(81.41% 0.108 215.1)
XYZ	xyz(44.1155, 55.9083, 89.3388)
Luminance	0.5591 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D4EE #EE7D63

analogous

#63EEC2 #63D4EE #638EEE

triadic

#63D4EE #EE63D4 #D4EE63

tetradic

#63D4EE #C263EE #EE7D63 #8EEE63

square

#63D4EE #C263EE #EE7D63 #8EEE63

split-complementary

#63D4EE #EE638E #EEC263

monochromatic

#15A1C2 #2CC5E8 #63D4EE #9AE3F4 #D1F2FA

Accessibility & contrast

On white

1.72

#63D4EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.18

#63D4EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D4EE

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D4EE	#FFFFFF	#000000	##000000
##63D4EE	1.00	1.72	12.18	12.18
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.18	21.00	1.00	1.00
##000000	12.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2CEF0

Deuteranopia (green-blind)

#ADBFEE

Tritanopia (blue-blind)

#00DEDC

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #63d4ee;
/* rgb */ color: rgb(99, 212, 238);
/* oklch */ color: oklch(81.4% 0.108 215.1);

Tailwind

colors: {
  custom: {
    50: '#9be1f3',
    500: '#63d4ee',
    950: '#000000',
  },
}

SCSS

$custom: #63d4ee;
$custom-light: #9be1f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63d4ee",
  "rgb": {
    "r": 99,
    "g": 212,
    "b": 238
  },
  "hsl": {
    "h": 191.223,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.81406,
    "c": 0.10836,
    "h": 215.1
  },
  "luminance": 0.55913
}

Semantic roles & 50–950 ramp

primary

#63D4EE

secondary

#C04F36

accent

#3009DD

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D4EE

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

Preview Lab → · Contrast checker → · Palette generator →