#63C0EB#63C0EB

#63C0EB is a light, moderate cyan. Relative luminance 0.464; OKLCH L 76.7% C 0.108 H 230.4°. Best body text is #000000 at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#63C0EB
RGB	rgb(99, 192, 235)
HSL	hsl(199, 77%, 65%)
HSV	hsv(199, 58%, 92%)
CMYK	cmyk(57.9%, 18.3%, 0%, 7.8%)
CIE-LAB	lab(73.77, -15.44, -29.72)
CIE-LCH	lch(73.77, 33.49, 242.55°)
OKLab	oklab(76.74% -0.0686 -0.0829)
OKLCH	oklch(76.74% 0.108 230.4)
XYZ	xyz(38.9849, 46.3464, 85.4724)
Luminance	0.4635 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C0EB #EB8E63

analogous

#63EBD2 #63C0EB #637CEB

triadic

#63C0EB #EB63C0 #C0EB63

tetradic

#63C0EB #D263EB #EB8E63 #7CEB63

square

#63C0EB #D263EB #EB8E63 #7CEB63

split-complementary

#63C0EB #EB637C #EBD263

monochromatic

#1888BC #2DAAE4 #63C0EB #99D6F2 #CFECF9

Accessibility & contrast

On white

2.04

#63C0EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.27

#63C0EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C0EB

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C0EB	#FFFFFF	#000000	##000000
##63C0EB	1.00	2.04	10.27	10.27
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.27	21.00	1.00	1.00
##000000	10.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABDED

Deuteranopia (green-blind)

#97AFEA

Tritanopia (blue-blind)

#00CCCE

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #63c0eb;
/* rgb */ color: rgb(99, 192, 235);
/* oklch */ color: oklch(76.7% 0.108 230.4);

Tailwind

colors: {
  custom: {
    50: '#9ad3f1',
    500: '#63c0eb',
    950: '#000000',
  },
}

SCSS

$custom: #63c0eb;
$custom-light: #9ad3f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63c0eb",
  "rgb": {
    "r": 99,
    "g": 192,
    "b": 235
  },
  "hsl": {
    "h": 198.971,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.76742,
    "c": 0.10761,
    "h": 230.4
  },
  "luminance": 0.4635
}

Semantic roles & 50–950 ramp

primary

#63C0EB

secondary

#ECCDBE

accent

#4D0CDA

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #63C0EB

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

Preview Lab → · Contrast checker → · Palette generator →