#63BEE4#63BEE4

#63BEE4 is a light, moderate cyan. Relative luminance 0.451; OKLCH L 76.0% C 0.102 H 227.7°. Best body text is #000000 at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#63BEE4
RGB	rgb(99, 190, 228)
HSL	hsl(198, 70%, 64%)
HSV	hsv(198, 57%, 89%)
CMYK	cmyk(56.6%, 16.7%, 0%, 10.6%)
CIE-LAB	lab(72.94, -16.47, -27.20)
CIE-LCH	lch(72.94, 31.80, 238.81°)
OKLab	oklab(76% -0.069 -0.0757)
OKLCH	oklch(76% 0.102 227.7)
XYZ	xyz(37.5573, 45.0775, 80.1053)
Luminance	0.4508 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BEE4 #E48963

analogous

#63E4C9 #63BEE4 #637EE4

triadic

#63BEE4 #E463BE #BEE463

tetradic

#63BEE4 #C963E4 #E48963 #7EE463

square

#63BEE4 #C963E4 #E48963 #7EE463

split-complementary

#63BEE4 #E4637E #E4C963

monochromatic

#1E84AE #2FA8DB #63BEE4 #97D4ED #CBE9F6

Accessibility & contrast

On white

2.10

#63BEE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.02

#63BEE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BEE4

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BEE4	#FFFFFF	#000000	##000000
##63BEE4	1.00	2.10	10.02	10.02
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.02	21.00	1.00	1.00
##000000	10.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABBE6

Deuteranopia (green-blind)

#98ADE4

Tritanopia (blue-blind)

#00C9CA

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bee4;
/* rgb */ color: rgb(99, 190, 228);
/* oklch */ color: oklch(76.0% 0.102 227.7);

Tailwind

colors: {
  custom: {
    50: '#99d1ec',
    500: '#63bee4',
    950: '#000000',
  },
}

SCSS

$custom: #63bee4;
$custom-light: #99d1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#63bee4",
  "rgb": {
    "r": 99,
    "g": 190,
    "b": 228
  },
  "hsl": {
    "h": 197.674,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.75998,
    "c": 0.10243,
    "h": 227.7
  },
  "luminance": 0.45081
}

Semantic roles & 50–950 ramp

primary

#63BEE4

secondary

#E8C8BB

accent

#4B13D3

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #63BEE4

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

Preview Lab → · Contrast checker → · Palette generator →