#63C3DF#63C3DF

#63C3DF is a light, moderate cyan. Relative luminance 0.470; OKLCH L 76.9% C 0.099 H 219.4°. Best body text is #000000 at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#63C3DF
RGB	rgb(99, 195, 223)
HSL	hsl(194, 66%, 63%)
HSV	hsv(194, 56%, 87%)
CMYK	cmyk(55.6%, 12.6%, 0%, 12.5%)
CIE-LAB	lab(74.19, -20.51, -22.58)
CIE-LCH	lch(74.19, 30.50, 227.75°)
OKLab	oklab(76.94% -0.0763 -0.0626)
OKLCH	oklch(76.94% 0.099 219.4)
XYZ	xyz(37.9748, 47.0070, 76.8698)
Luminance	0.4701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C3DF #DF7F63

analogous

#63DFBD #63C3DF #6385DF

triadic

#63C3DF #DF63C3 #C3DF63

tetradic

#63C3DF #BD63DF #DF7F63 #85DF63

square

#63C3DF #BD63DF #DF7F63 #85DF63

split-complementary

#63C3DF #DF6385 #DFBD63

monochromatic

#2288A6 #30AFD5 #63C3DF #96D7E9 #C9EAF4

Accessibility & contrast

On white

2.02

#63C3DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.40

#63C3DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C3DF

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C3DF	#FFFFFF	#000000	##000000
##63C3DF	1.00	2.02	10.40	10.40
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.40	21.00	1.00	1.00
##000000	10.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1BEE1

Deuteranopia (green-blind)

#9FB1DF

Tritanopia (blue-blind)

#00CCCC

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #63c3df;
/* rgb */ color: rgb(99, 195, 223);
/* oklch */ color: oklch(76.9% 0.099 219.4);

Tailwind

colors: {
  custom: {
    50: '#99d5e9',
    500: '#63c3df',
    950: '#000000',
  },
}

SCSS

$custom: #63c3df;
$custom-light: #99d5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#63c3df",
  "rgb": {
    "r": 99,
    "g": 195,
    "b": 223
  },
  "hsl": {
    "h": 193.548,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.76938,
    "c": 0.09868,
    "h": 219.4
  },
  "luminance": 0.47011
}

Semantic roles & 50–950 ramp

primary

#63C3DF

secondary

#E5C3B9

accent

#4118CE

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1416

muted

#7E8384

Preview Lab

Preview with #63C3DF

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

Preview Lab → · Contrast checker → · Palette generator →