#63C8EF#63C8EF

#63C8EF is a light, moderate cyan. Relative luminance 0.502; OKLCH L 78.7% C 0.109 H 226.0°. Best body text is #000000 at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#63C8EF
RGB	rgb(99, 200, 239)
HSL	hsl(197, 81%, 66%)
HSV	hsv(197, 59%, 94%)
CMYK	cmyk(58.6%, 16.3%, 0%, 6.3%)
CIE-LAB	lab(76.19, -18.41, -28.17)
CIE-LCH	lch(76.19, 33.65, 236.82°)
OKLab	oklab(78.72% -0.0757 -0.0785)
OKLCH	oklch(78.72% 0.109 226)
XYZ	xyz(41.3738, 50.1892, 89.1517)
Luminance	0.5019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8EF #EF8A63

analogous

#63EFD0 #63C8EF #6382EF

triadic

#63C8EF #EF63C8 #C8EF63

tetradic

#63C8EF #D063EF #EF8A63 #82EF63

square

#63C8EF #D063EF #EF8A63 #82EF63

split-complementary

#63C8EF #EF6382 #EFD063

monochromatic

#1493C4 #2BB4E9 #63C8EF #9BDCF5 #D2EFFA

Accessibility & contrast

On white

1.90

#63C8EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.04

#63C8EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8EF

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8EF	#FFFFFF	#000000	##000000
##63C8EF	1.00	1.90	11.04	11.04
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.04	21.00	1.00	1.00
##000000	11.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3C4F1

Deuteranopia (green-blind)

#9FB5EF

Tritanopia (blue-blind)

#00D4D5

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #63c8ef;
/* rgb */ color: rgb(99, 200, 239);
/* oklch */ color: oklch(78.7% 0.109 226.0);

Tailwind

colors: {
  custom: {
    50: '#9bd8f4',
    500: '#63c8ef',
    950: '#000000',
  },
}

SCSS

$custom: #63c8ef;
$custom-light: #9bd8f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8ef",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 239
  },
  "hsl": {
    "h": 196.714,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.78716,
    "c": 0.109,
    "h": 226
  },
  "luminance": 0.50193
}

Semantic roles & 50–950 ramp

primary

#63C8EF

secondary

#C15C35

accent

#4308DE

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1417

muted

#808385

Preview Lab

Preview with #63C8EF

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

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