#63C5DA#63C5DA

#63C5DA is a light, moderate cyan. Relative luminance 0.476; OKLCH L 77.2% C 0.096 H 213.6°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#63C5DA
RGB	rgb(99, 197, 218)
HSL	hsl(191, 62%, 62%)
HSV	hsv(191, 55%, 85%)
CMYK	cmyk(54.6%, 9.6%, 0%, 14.5%)
CIE-LAB	lab(74.60, -22.94, -19.26)
CIE-LCH	lch(74.60, 29.95, 220.00°)
OKLab	oklab(77.21% -0.0804 -0.0533)
OKLCH	oklch(77.21% 0.096 213.6)
XYZ	xyz(37.7617, 47.6436, 73.5222)
Luminance	0.4765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C5DA #DA7863

analogous

#63DAB3 #63C5DA #638ADA

triadic

#63C5DA #DA63C5 #C5DA63

tetradic

#63C5DA #B363DA #DA7863 #8ADA63

square

#63C5DA #B363DA #DA7863 #8ADA63

split-complementary

#63C5DA #DA638A #DAB363

monochromatic

#25889D #32B3CE #63C5DA #94D7E6 #C6EAF1

Accessibility & contrast

On white

1.99

#63C5DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.53

#63C5DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C5DA

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C5DA	#FFFFFF	#000000	##000000
##63C5DA	1.00	1.99	10.53	10.53
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.53	21.00	1.00	1.00
##000000	10.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5BFDB

Deuteranopia (green-blind)

#A3B2DA

Tritanopia (blue-blind)

#00CDCB

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c5da;
/* rgb */ color: rgb(99, 197, 218);
/* oklch */ color: oklch(77.2% 0.096 213.6);

Tailwind

colors: {
  custom: {
    50: '#99d6e5',
    500: '#63c5da',
    950: '#000000',
  },
}

SCSS

$custom: #63c5da;
$custom-light: #99d6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#63c5da",
  "rgb": {
    "r": 99,
    "g": 197,
    "b": 218
  },
  "hsl": {
    "h": 190.588,
    "s": 61.658,
    "l": 62.157
  },
  "oklch": {
    "l": 0.77206,
    "c": 0.09643,
    "h": 213.6
  },
  "luminance": 0.47647
}

Semantic roles & 50–950 ramp

primary

#63C5DA

secondary

#E2BEB7

accent

#3B1CC9

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1415

muted

#7E8384

Preview Lab

Preview with #63C5DA

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

Preview Lab → · Contrast checker → · Palette generator →