#63B3CC#63B3CC

#63B3CC is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.5% C 0.086 H 220.4°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#63B3CC
RGB	rgb(99, 179, 204)
HSL	hsl(194, 51%, 59%)
HSV	hsv(194, 51%, 80%)
CMYK	cmyk(51.5%, 12.3%, 0%, 20%)
CIE-LAB	lab(68.93, -17.67, -20.22)
CIE-LCH	lch(68.93, 26.85, 228.85°)
OKLab	oklab(72.52% -0.0657 -0.056)
OKLCH	oklch(72.52% 0.086 220.4)
XYZ	xyz(32.1606, 39.2497, 62.9962)
Luminance	0.3925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B3CC #CC7C63

analogous

#63CCB1 #63B3CC #637FCC

triadic

#63B3CC #CC63B3 #B3CC63

tetradic

#63B3CC #B163CC #CC7C63 #7FCC63

square

#63B3CC #B163CC #CC7C63 #7FCC63

split-complementary

#63B3CC #CC637F #CCB163

monochromatic

#2C7288 #3C99B6 #63B3CC #91C9DB #BFE0EA

Accessibility & contrast

On white

2.37

#63B3CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#63B3CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B3CC

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B3CC	#FFFFFF	#000000	##000000
##63B3CC	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AFCD

Deuteranopia (green-blind)

#94A3CC

Tritanopia (blue-blind)

#20BBBB

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63b3cc;
/* rgb */ color: rgb(99, 179, 204);
/* oklch */ color: oklch(72.5% 0.086 220.4);

Tailwind

colors: {
  custom: {
    50: '#96c9db',
    500: '#63b3cc',
    950: '#000000',
  },
}

SCSS

$custom: #63b3cc;
$custom-light: #96c9db;
$custom-dark: #000000;

JSON

{
  "hex": "#63b3cc",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 204
  },
  "hsl": {
    "h": 194.286,
    "s": 50.725,
    "l": 59.412
  },
  "oklch": {
    "l": 0.72515,
    "c": 0.08634,
    "h": 220.4
  },
  "luminance": 0.39252
}

Semantic roles & 50–950 ramp

primary

#63B3CC

secondary

#DABBB1

accent

#6F4EDA

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B3CC

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

Preview Lab → · Contrast checker → · Palette generator →