#63B7E4#63B7E4

#63B7E4 is a light, moderate cyan. Relative luminance 0.421; OKLCH L 74.4% C 0.104 H 234.0°. Best body text is #000000 at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#63B7E4
RGB	rgb(99, 183, 228)
HSL	hsl(201, 70%, 64%)
HSV	hsv(201, 57%, 89%)
CMYK	cmyk(56.6%, 19.7%, 0%, 10.6%)
CIE-LAB	lab(70.95, -12.77, -30.26)
CIE-LCH	lch(70.95, 32.85, 247.12°)
OKLab	oklab(74.41% -0.0614 -0.0844)
OKLCH	oklch(74.41% 0.104 234)
XYZ	xyz(36.0774, 42.1178, 79.6121)
Luminance	0.4212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7E4 #E49063

analogous

#63E4D1 #63B7E4 #6377E4

triadic

#63B7E4 #E463B7 #B7E463

tetradic

#63B7E4 #D163E4 #E49063 #77E463

square

#63B7E4 #D163E4 #E49063 #77E463

split-complementary

#63B7E4 #E46377 #E4D163

monochromatic

#1E7CAE #2F9FDB #63B7E4 #97CFED #CBE7F6

Accessibility & contrast

On white

2.23

#63B7E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.42

#63B7E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7E4

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7E4	#FFFFFF	#000000	##000000
##63B7E4	1.00	2.23	9.42	9.42
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.42	21.00	1.00	1.00
##000000	9.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B5E6

Deuteranopia (green-blind)

#8FA8E3

Tritanopia (blue-blind)

#00C3C6

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b7e4;
/* rgb */ color: rgb(99, 183, 228);
/* oklch */ color: oklch(74.4% 0.104 234.0);

Tailwind

colors: {
  custom: {
    50: '#99ccec',
    500: '#63b7e4',
    950: '#000000',
  },
}

SCSS

$custom: #63b7e4;
$custom-light: #99ccec;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7e4",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 228
  },
  "hsl": {
    "h": 200.93,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.74413,
    "c": 0.10441,
    "h": 234
  },
  "luminance": 0.42121
}

Semantic roles & 50–950 ramp

primary

#63B7E4

secondary

#E8CBBB

accent

#5613D3

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63B7E4

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

Preview Lab → · Contrast checker → · Palette generator →