#63BCE4#63BCE4

#63BCE4 is a light, moderate cyan. Relative luminance 0.442; OKLCH L 75.5% C 0.103 H 229.5°. Best body text is #000000 at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#63BCE4
RGB	rgb(99, 188, 228)
HSL	hsl(199, 70%, 64%)
HSV	hsv(199, 57%, 89%)
CMYK	cmyk(56.6%, 17.5%, 0%, 10.6%)
CIE-LAB	lab(72.37, -15.42, -28.07)
CIE-LCH	lch(72.37, 32.03, 241.22°)
OKLab	oklab(75.54% -0.0668 -0.0782)
OKLCH	oklch(75.54% 0.103 229.5)
XYZ	xyz(37.1271, 44.2171, 79.9619)
Luminance	0.4422 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BCE4 #E48B63

analogous

#63E4CC #63BCE4 #637CE4

triadic

#63BCE4 #E463BC #BCE463

tetradic

#63BCE4 #CC63E4 #E48B63 #7CE463

square

#63BCE4 #CC63E4 #E48B63 #7CE463

split-complementary

#63BCE4 #E4637C #E4CC63

monochromatic

#1E82AE #2FA6DB #63BCE4 #97D2ED #CBE9F6

Accessibility & contrast

On white

2.13

#63BCE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.84

#63BCE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BCE4

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BCE4	#FFFFFF	#000000	##000000
##63BCE4	1.00	2.13	9.84	9.84
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.84	21.00	1.00	1.00
##000000	9.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B9E6

Deuteranopia (green-blind)

#95ACE3

Tritanopia (blue-blind)

#00C7C9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63bce4;
/* rgb */ color: rgb(99, 188, 228);
/* oklch */ color: oklch(75.5% 0.103 229.5);

Tailwind

colors: {
  custom: {
    50: '#99d0ec',
    500: '#63bce4',
    950: '#000000',
  },
}

SCSS

$custom: #63bce4;
$custom-light: #99d0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#63bce4",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 228
  },
  "hsl": {
    "h": 198.605,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.75544,
    "c": 0.10287,
    "h": 229.5
  },
  "luminance": 0.44221
}

Semantic roles & 50–950 ramp

primary

#63BCE4

secondary

#E8C9BB

accent

#4E13D3

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #63BCE4

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

Preview Lab → · Contrast checker → · Palette generator →