#63C0ED#63C0ED

#63C0ED is a light, moderate cyan. Relative luminance 0.465; OKLCH L 76.8% C 0.109 H 231.6°. Best body text is #000000 at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#63C0ED
RGB	rgb(99, 192, 237)
HSL	hsl(200, 79%, 66%)
HSV	hsv(200, 58%, 93%)
CMYK	cmyk(58.2%, 19%, 0%, 7.1%)
CIE-LAB	lab(73.84, -14.84, -30.69)
CIE-LCH	lch(73.84, 34.09, 244.19°)
OKLab	oklab(76.83% -0.0679 -0.0856)
OKLCH	oklch(76.83% 0.109 231.6)
XYZ	xyz(39.2754, 46.4626, 87.0027)
Luminance	0.4647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C0ED #ED9063

analogous

#63EDD5 #63C0ED #637BED

triadic

#63C0ED #ED63C0 #C0ED63

tetradic

#63C0ED #D563ED #ED9063 #7BED63

square

#63C0ED #D563ED #ED9063 #7BED63

split-complementary

#63C0ED #ED637B #EDD563

monochromatic

#1688C0 #2CAAE7 #63C0ED #9AD6F3 #D1ECFA

Accessibility & contrast

On white

2.04

#63C0ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.29

#63C0ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C0ED

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C0ED	#FFFFFF	#000000	##000000
##63C0ED	1.00	2.04	10.29	10.29
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.29	21.00	1.00	1.00
##000000	10.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABEEF

Deuteranopia (green-blind)

#96AFEC

Tritanopia (blue-blind)

#00CCCF

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #63c0ed;
/* rgb */ color: rgb(99, 192, 237);
/* oklch */ color: oklch(76.8% 0.109 231.6);

Tailwind

colors: {
  custom: {
    50: '#9ad3f3',
    500: '#63c0ed',
    950: '#000000',
  },
}

SCSS

$custom: #63c0ed;
$custom-light: #9ad3f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63c0ed",
  "rgb": {
    "r": 99,
    "g": 192,
    "b": 237
  },
  "hsl": {
    "h": 199.565,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.76826,
    "c": 0.10931,
    "h": 231.6
  },
  "luminance": 0.46466
}

Semantic roles & 50–950 ramp

primary

#63C0ED

secondary

#EDCEBF

accent

#4E0ADC

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #63C0ED

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

Preview Lab → · Contrast checker → · Palette generator →