#63AEE4#63AEE4

#63AEE4 is a light, moderate cyan. Relative luminance 0.385; OKLCH L 72.4% C 0.109 H 241.7°. Best body text is #000000 at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#63AEE4
RGB	rgb(99, 174, 228)
HSL	hsl(205, 70%, 64%)
HSV	hsv(205, 57%, 89%)
CMYK	cmyk(56.6%, 23.7%, 0%, 10.6%)
CIE-LAB	lab(68.40, -7.90, -34.20)
CIE-LCH	lch(68.40, 35.10, 256.99°)
OKLab	oklab(72.39% -0.0516 -0.0958)
OKLCH	oklch(72.39% 0.109 241.7)
XYZ	xyz(34.2801, 38.5231, 79.0129)
Luminance	0.3853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AEE4 #E49963

analogous

#63E4D9 #63AEE4 #636EE4

triadic

#63AEE4 #E463AE #AEE463

tetradic

#63AEE4 #D963E4 #E49963 #6EE463

square

#63AEE4 #D963E4 #E49963 #6EE463

split-complementary

#63AEE4 #E4636E #E4D963

monochromatic

#1E72AE #2F93DB #63AEE4 #97C9ED #CBE4F6

Accessibility & contrast

On white

2.41

#63AEE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.71

#63AEE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AEE4

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AEE4	#FFFFFF	#000000	##000000
##63AEE4	1.00	2.41	8.71	8.71
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.71	21.00	1.00	1.00
##000000	8.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96AEE7

Deuteranopia (green-blind)

#85A1E3

Tritanopia (blue-blind)

#00BBC0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63aee4;
/* rgb */ color: rgb(99, 174, 228);
/* oklch */ color: oklch(72.4% 0.109 241.7);

Tailwind

colors: {
  custom: {
    50: '#99c6ec',
    500: '#63aee4',
    950: '#000000',
  },
}

SCSS

$custom: #63aee4;
$custom-light: #99c6ec;
$custom-dark: #000000;

JSON

{
  "hex": "#63aee4",
  "rgb": {
    "r": 99,
    "g": 174,
    "b": 228
  },
  "hsl": {
    "h": 205.116,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.72394,
    "c": 0.1088,
    "h": 241.7
  },
  "luminance": 0.38526
}

Semantic roles & 50–950 ramp

primary

#63AEE4

secondary

#E8CEBB

accent

#6313D3

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63AEE4

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

Preview Lab → · Contrast checker → · Palette generator →