#63C5DC#63C5DC

#63C5DC is a light, moderate cyan. Relative luminance 0.478; OKLCH L 77.3% C 0.097 H 215.2°. Best body text is #000000 at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#63C5DC
RGB	rgb(99, 197, 220)
HSL	hsl(191, 63%, 63%)
HSV	hsv(191, 55%, 86%)
CMYK	cmyk(55%, 10.5%, 0%, 13.7%)
CIE-LAB	lab(74.67, -22.38, -20.24)
CIE-LCH	lch(74.67, 30.17, 222.12°)
OKLab	oklab(77.28% -0.0796 -0.056)
OKLCH	oklch(77.28% 0.097 215.2)
XYZ	xyz(38.0250, 47.7489, 74.9089)
Luminance	0.4775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C5DC #DC7A63

analogous

#63DCB7 #63C5DC #6388DC

triadic

#63C5DC #DC63C5 #C5DC63

tetradic

#63C5DC #B763DC #DC7A63 #88DC63

square

#63C5DC #B763DC #DC7A63 #88DC63

split-complementary

#63C5DC #DC6388 #DCB763

monochromatic

#2489A1 #31B2D1 #63C5DC #95D8E7 #C7EAF2

Accessibility & contrast

On white

1.99

#63C5DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.55

#63C5DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C5DC

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C5DC	#FFFFFF	#000000	##000000
##63C5DC	1.00	1.99	10.55	10.55
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.55	21.00	1.00	1.00
##000000	10.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C0DD

Deuteranopia (green-blind)

#A2B2DC

Tritanopia (blue-blind)

#00CECC

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c5dc;
/* rgb */ color: rgb(99, 197, 220);
/* oklch */ color: oklch(77.3% 0.097 215.2);

Tailwind

colors: {
  custom: {
    50: '#99d6e6',
    500: '#63c5dc',
    950: '#000000',
  },
}

SCSS

$custom: #63c5dc;
$custom-light: #99d6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#63c5dc",
  "rgb": {
    "r": 99,
    "g": 197,
    "b": 220
  },
  "hsl": {
    "h": 191.405,
    "s": 63.351,
    "l": 62.549
  },
  "oklch": {
    "l": 0.77282,
    "c": 0.09734,
    "h": 215.2
  },
  "luminance": 0.47752
}

Semantic roles & 50–950 ramp

primary

#63C5DC

secondary

#E3C0B7

accent

#3C1ACB

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1416

muted

#7E8384

Preview Lab

Preview with #63C5DC

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

Preview Lab → · Contrast checker → · Palette generator →