#63BEE5#63BEE5

#63BEE5 is a light, moderate cyan. Relative luminance 0.451; OKLCH L 76.0% C 0.103 H 228.3°. Best body text is #000000 at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#63BEE5
RGB	rgb(99, 190, 229)
HSL	hsl(198, 71%, 64%)
HSV	hsv(198, 57%, 90%)
CMYK	cmyk(56.8%, 17%, 0%, 10.2%)
CIE-LAB	lab(72.98, -16.17, -27.69)
CIE-LCH	lch(72.98, 32.06, 239.71°)
OKLab	oklab(76.04% -0.0686 -0.0771)
OKLCH	oklch(76.04% 0.103 228.3)
XYZ	xyz(37.6965, 45.1332, 80.8386)
Luminance	0.4514 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BEE5 #E58A63

analogous

#63E5CB #63BEE5 #637DE5

triadic

#63BEE5 #E563BE #BEE563

tetradic

#63BEE5 #CB63E5 #E58A63 #7DE563

square

#63BEE5 #CB63E5 #E58A63 #7DE563

split-complementary

#63BEE5 #E5637D #E5CB63

monochromatic

#1D84B0 #2FA8DC #63BEE5 #97D4EE #CCEAF6

Accessibility & contrast

On white

2.09

#63BEE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.03

#63BEE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BEE5

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BEE5	#FFFFFF	#000000	##000000
##63BEE5	1.00	2.09	10.03	10.03
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.03	21.00	1.00	1.00
##000000	10.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABBE7

Deuteranopia (green-blind)

#97ADE5

Tritanopia (blue-blind)

#00C9CB

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bee5;
/* rgb */ color: rgb(99, 190, 229);
/* oklch */ color: oklch(76.0% 0.103 228.3);

Tailwind

colors: {
  custom: {
    50: '#99d1ed',
    500: '#63bee5',
    950: '#000000',
  },
}

SCSS

$custom: #63bee5;
$custom-light: #99d1ed;
$custom-dark: #000000;

JSON

{
  "hex": "#63bee5",
  "rgb": {
    "r": 99,
    "g": 190,
    "b": 229
  },
  "hsl": {
    "h": 198,
    "s": 71.429,
    "l": 64.314
  },
  "oklch": {
    "l": 0.76039,
    "c": 0.10321,
    "h": 228.3
  },
  "luminance": 0.45137
}

Semantic roles & 50–950 ramp

primary

#63BEE5

secondary

#E8C9BB

accent

#4C12D3

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #63BEE5

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

Preview Lab → · Contrast checker → · Palette generator →