#63C8EE#63C8EE

#63C8EE is a light, moderate cyan. Relative luminance 0.501; OKLCH L 78.7% C 0.108 H 225.4°. Best body text is #000000 at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#63C8EE
RGB	rgb(99, 200, 238)
HSL	hsl(196, 80%, 66%)
HSV	hsv(196, 58%, 93%)
CMYK	cmyk(58.4%, 16%, 0%, 6.7%)
CIE-LAB	lab(76.15, -18.71, -27.68)
CIE-LCH	lch(76.15, 33.41, 235.95°)
OKLab	oklab(78.68% -0.076 -0.0771)
OKLCH	oklch(78.68% 0.108 225.4)
XYZ	xyz(41.2265, 50.1303, 88.3758)
Luminance	0.5013 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8EE #EE8963

analogous

#63EECE #63C8EE #6382EE

triadic

#63C8EE #EE63C8 #C8EE63

tetradic

#63C8EE #CE63EE #EE8963 #82EE63

square

#63C8EE #CE63EE #EE8963 #82EE63

split-complementary

#63C8EE #EE6382 #EECE63

monochromatic

#1592C2 #2CB5E8 #63C8EE #9ADBF4 #D1EFFA

Accessibility & contrast

On white

1.90

#63C8EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.03

#63C8EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8EE

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8EE	#FFFFFF	#000000	##000000
##63C8EE	1.00	1.90	11.03	11.03
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.03	21.00	1.00	1.00
##000000	11.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3C4F0

Deuteranopia (green-blind)

#9FB5EE

Tritanopia (blue-blind)

#00D3D4

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #63c8ee;
/* rgb */ color: rgb(99, 200, 238);
/* oklch */ color: oklch(78.7% 0.108 225.4);

Tailwind

colors: {
  custom: {
    50: '#9bd8f3',
    500: '#63c8ee',
    950: '#000000',
  },
}

SCSS

$custom: #63c8ee;
$custom-light: #9bd8f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8ee",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 238
  },
  "hsl": {
    "h": 196.403,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.78675,
    "c": 0.10827,
    "h": 225.4
  },
  "luminance": 0.50134
}

Semantic roles & 50–950 ramp

primary

#63C8EE

secondary

#C05B36

accent

#4309DD

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1417

muted

#808385

Preview Lab

Preview with #63C8EE

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

Preview Lab → · Contrast checker → · Palette generator →