#63C8DD#63C8DD

#63C8DD is a light, moderate cyan. Relative luminance 0.492; OKLCH L 78.0% C 0.098 H 213.1°. Best body text is #000000 at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#63C8DD
RGB	rgb(99, 200, 221)
HSL	hsl(190, 64%, 63%)
HSV	hsv(190, 55%, 87%)
CMYK	cmyk(55.2%, 9.5%, 0%, 13.3%)
CIE-LAB	lab(75.56, -23.61, -19.42)
CIE-LCH	lch(75.56, 30.57, 219.44°)
OKLab	oklab(78.01% -0.0824 -0.0538)
OKLCH	oklch(78.01% 0.098 213.1)
XYZ	xyz(38.8458, 49.1780, 75.8378)
Luminance	0.4918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8DD #DD7863

analogous

#63DDB5 #63C8DD #638BDD

triadic

#63C8DD #DD63C8 #C8DD63

tetradic

#63C8DD #B563DD #DD7863 #8BDD63

square

#63C8DD #B563DD #DD7863 #8BDD63

split-complementary

#63C8DD #DD638B #DDB563

monochromatic

#238CA2 #31B6D2 #63C8DD #95DAE8 #C7EBF3

Accessibility & contrast

On white

1.94

#63C8DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.84

#63C8DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8DD

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8DD	#FFFFFF	#000000	##000000
##63C8DD	1.00	1.94	10.84	10.84
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.84	21.00	1.00	1.00
##000000	10.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C2DE

Deuteranopia (green-blind)

#A5B4DD

Tritanopia (blue-blind)

#00D1CE

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #63c8dd;
/* rgb */ color: rgb(99, 200, 221);
/* oklch */ color: oklch(78.0% 0.098 213.1);

Tailwind

colors: {
  custom: {
    50: '#99d9e7',
    500: '#63c8dd',
    950: '#000000',
  },
}

SCSS

$custom: #63c8dd;
$custom-light: #99d9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8dd",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 221
  },
  "hsl": {
    "h": 190.328,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.78011,
    "c": 0.09843,
    "h": 213.1
  },
  "luminance": 0.49182
}

Semantic roles & 50–950 ramp

primary

#63C8DD

secondary

#E4BFB8

accent

#3819CC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1416

muted

#7E8384

Preview Lab

Preview with #63C8DD

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

Preview Lab → · Contrast checker → · Palette generator →