#63D7EF#63D7EF

#63D7EF is a very light, moderate cyan. Relative luminance 0.575; OKLCH L 82.1% C 0.109 H 213.3°. Best body text is #000000 at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#63D7EF
RGB	rgb(99, 215, 239)
HSL	hsl(190, 81%, 66%)
HSV	hsv(190, 59%, 94%)
CMYK	cmyk(58.6%, 10%, 0%, 6.3%)
CIE-LAB	lab(80.45, -25.98, -21.66)
CIE-LCH	lch(80.45, 33.82, 219.82°)
OKLab	oklab(82.13% -0.0914 -0.0601)
OKLCH	oklch(82.13% 0.109 213.3)
XYZ	xyz(45.0197, 57.4810, 90.3670)
Luminance	0.5749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D7EF #EF7B63

analogous

#63EFC1 #63D7EF #6391EF

triadic

#63D7EF #EF63D7 #D7EF63

tetradic

#63D7EF #C163EF #EF7B63 #91EF63

square

#63D7EF #C163EF #EF7B63 #91EF63

split-complementary

#63D7EF #EF6391 #EFC163

monochromatic

#14A5C4 #2BC9E9 #63D7EF #9BE5F5 #D2F3FA

Accessibility & contrast

On white

1.68

#63D7EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.50

#63D7EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D7EF

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D7EF	#FFFFFF	#000000	##000000
##63D7EF	1.00	1.68	12.50	12.50
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.50	21.00	1.00	1.00
##000000	12.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D1F0

Deuteranopia (green-blind)

#B0C1EF

Tritanopia (blue-blind)

#00E1DE

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #63d7ef;
/* rgb */ color: rgb(99, 215, 239);
/* oklch */ color: oklch(82.1% 0.109 213.3);

Tailwind

colors: {
  custom: {
    50: '#9ce3f4',
    500: '#63d7ef',
    950: '#000000',
  },
}

SCSS

$custom: #63d7ef;
$custom-light: #9ce3f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63d7ef",
  "rgb": {
    "r": 99,
    "g": 215,
    "b": 239
  },
  "hsl": {
    "h": 190.286,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.82129,
    "c": 0.10935,
    "h": 213.3
  },
  "luminance": 0.57486
}

Semantic roles & 50–950 ramp

primary

#63D7EF

secondary

#C14D35

accent

#2C08DE

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D7EF

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

Preview Lab → · Contrast checker → · Palette generator →