#63AAE4#63AAE4

#63AAE4 is a light, moderate cyan. Relative luminance 0.370; OKLCH L 71.5% C 0.111 H 244.9°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#63AAE4
RGB	rgb(99, 170, 228)
HSL	hsl(207, 70%, 64%)
HSV	hsv(207, 57%, 89%)
CMYK	cmyk(56.6%, 25.4%, 0%, 10.6%)
CIE-LAB	lab(67.28, -5.70, -35.95)
CIE-LCH	lch(67.28, 36.40, 260.99°)
OKLab	oklab(71.5% -0.0472 -0.1008)
OKLCH	oklch(71.5% 0.111 244.9)
XYZ	xyz(33.5188, 37.0006, 78.7592)
Luminance	0.3700 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AAE4 #E49D63

analogous

#63E4DE #63AAE4 #636AE4

triadic

#63AAE4 #E463AA #AAE463

tetradic

#63AAE4 #DE63E4 #E49D63 #6AE463

square

#63AAE4 #DE63E4 #E49D63 #6AE463

split-complementary

#63AAE4 #E4636A #E4DE63

monochromatic

#1E6EAE #2F8EDB #63AAE4 #97C6ED #CBE3F6

Accessibility & contrast

On white

2.50

#63AAE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#63AAE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AAE4

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AAE4	#FFFFFF	#000000	##000000
##63AAE4	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91ABE7

Deuteranopia (green-blind)

#809EE3

Tritanopia (blue-blind)

#00B8BE

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #63aae4;
/* rgb */ color: rgb(99, 170, 228);
/* oklch */ color: oklch(71.5% 0.111 244.9);

Tailwind

colors: {
  custom: {
    50: '#98c3ec',
    500: '#63aae4',
    950: '#000000',
  },
}

SCSS

$custom: #63aae4;
$custom-light: #98c3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#63aae4",
  "rgb": {
    "r": 99,
    "g": 170,
    "b": 228
  },
  "hsl": {
    "h": 206.977,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.71504,
    "c": 0.11134,
    "h": 244.9
  },
  "luminance": 0.37004
}

Semantic roles & 50–950 ramp

primary

#63AAE4

secondary

#E8CFBB

accent

#6913D3

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #63AAE4

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

Preview Lab → · Contrast checker → · Palette generator →