#63D1EF#63D1EF

#63D1EF is a light, moderate cyan. Relative luminance 0.545; OKLCH L 80.8% C 0.109 H 218.4°. Best body text is #000000 at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#63D1EF
RGB	rgb(99, 209, 239)
HSL	hsl(193, 81%, 66%)
HSV	hsv(193, 59%, 94%)
CMYK	cmyk(58.6%, 12.6%, 0%, 6.3%)
CIE-LAB	lab(78.74, -22.99, -24.26)
CIE-LCH	lch(78.74, 33.42, 226.53°)
OKLab	oklab(80.76% -0.0851 -0.0674)
OKLCH	oklch(80.76% 0.109 218.4)
XYZ	xyz(43.5198, 54.4813, 89.8671)
Luminance	0.5449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D1EF #EF8163

analogous

#63EFC7 #63D1EF #638BEF

triadic

#63D1EF #EF63D1 #D1EF63

tetradic

#63D1EF #C763EF #EF8163 #8BEF63

square

#63D1EF #C763EF #EF8163 #8BEF63

split-complementary

#63D1EF #EF638B #EFC763

monochromatic

#149EC4 #2BC1E9 #63D1EF #9BE1F5 #D2F2FA

Accessibility & contrast

On white

1.77

#63D1EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.90

#63D1EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D1EF

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D1EF	#FFFFFF	#000000	##000000
##63D1EF	1.00	1.77	11.90	11.90
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.90	21.00	1.00	1.00
##000000	11.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BECCF1

Deuteranopia (green-blind)

#A9BCEF

Tritanopia (blue-blind)

#00DBDA

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #63d1ef;
/* rgb */ color: rgb(99, 209, 239);
/* oklch */ color: oklch(80.8% 0.109 218.4);

Tailwind

colors: {
  custom: {
    50: '#9bdff4',
    500: '#63d1ef',
    950: '#000000',
  },
}

SCSS

$custom: #63d1ef;
$custom-light: #9bdff4;
$custom-dark: #000000;

JSON

{
  "hex": "#63d1ef",
  "rgb": {
    "r": 99,
    "g": 209,
    "b": 239
  },
  "hsl": {
    "h": 192.857,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.8076,
    "c": 0.10855,
    "h": 218.4
  },
  "luminance": 0.54486
}

Semantic roles & 50–950 ramp

primary

#63D1EF

secondary

#C15335

accent

#3608DE

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D1EF

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

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