#63C4DD#63C4DD

#63C4DD is a light, moderate cyan. Relative luminance 0.474; OKLCH L 77.1% C 0.098 H 216.9°. Best body text is #000000 at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#63C4DD
RGB	rgb(99, 196, 221)
HSL	hsl(192, 64%, 63%)
HSV	hsv(192, 55%, 87%)
CMYK	cmyk(55.2%, 11.3%, 0%, 13.3%)
CIE-LAB	lab(74.41, -21.59, -21.16)
CIE-LCH	lch(74.41, 30.23, 224.43°)
OKLab	oklab(77.09% -0.0781 -0.0586)
OKLCH	oklch(77.09% 0.098 216.9)
XYZ	xyz(37.9315, 47.3494, 75.5330)
Luminance	0.4735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C4DD #DD7C63

analogous

#63DDB9 #63C4DD #6387DD

triadic

#63C4DD #DD63C4 #C4DD63

tetradic

#63C4DD #B963DD #DD7C63 #87DD63

square

#63C4DD #B963DD #DD7C63 #87DD63

split-complementary

#63C4DD #DD6387 #DDB963

monochromatic

#2388A2 #31B1D2 #63C4DD #95D7E8 #C7EAF3

Accessibility & contrast

On white

2.01

#63C4DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.47

#63C4DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C4DD

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C4DD	#FFFFFF	#000000	##000000
##63C4DD	1.00	2.01	10.47	10.47
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.47	21.00	1.00	1.00
##000000	10.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3BFDE

Deuteranopia (green-blind)

#A1B1DD

Tritanopia (blue-blind)

#00CDCC

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #63c4dd;
/* rgb */ color: rgb(99, 196, 221);
/* oklch */ color: oklch(77.1% 0.098 216.9);

Tailwind

colors: {
  custom: {
    50: '#99d6e7',
    500: '#63c4dd',
    950: '#000000',
  },
}

SCSS

$custom: #63c4dd;
$custom-light: #99d6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#63c4dd",
  "rgb": {
    "r": 99,
    "g": 196,
    "b": 221
  },
  "hsl": {
    "h": 192.295,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.7709,
    "c": 0.09768,
    "h": 216.9
  },
  "luminance": 0.47353
}

Semantic roles & 50–950 ramp

primary

#63C4DD

secondary

#E4C1B8

accent

#3E19CC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1416

muted

#7E8384

Preview Lab

Preview with #63C4DD

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

Preview Lab → · Contrast checker → · Palette generator →