#63AEFF#63AEFF

#63AEFF is a light, vivid cyan. Relative luminance 0.401; OKLCH L 73.7% C 0.140 H 251.9°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#63AEFF
RGB	rgb(99, 174, 255)
HSL	hsl(211, 100%, 69%)
HSV	hsv(211, 61%, 100%)
CMYK	cmyk(61.2%, 31.8%, 0%, 0%)
CIE-LAB	lab(69.57, 0.55, -47.08)
CIE-LCH	lch(69.57, 47.08, 270.67°)
OKLab	oklab(73.69% -0.0436 -0.133)
OKLCH	oklch(73.69% 0.14 251.9)
XYZ	xyz(38.3251, 40.1411, 100.3167)
Luminance	0.4014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AEFF #FFB463

analogous

#63FCFF #63AEFF #6663FF

triadic

#63AEFF #FF63AE #AEFF63

tetradic

#63AEFF #FF63FC #FFB463 #63FF66

square

#63AEFF #FF63FC #FFB463 #63FF66

split-complementary

#63AEFF #FF6663 #FCFF63

monochromatic

#006FE8 #268EFF #63AEFF #A0CEFF #DDEEFF

Accessibility & contrast

On white

2.33

#63AEFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#63AEFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AEFF

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AEFF	#FFFFFF	#000000	##000000
##63AEFF	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BB2FF

Deuteranopia (green-blind)

#76A3FD

Tritanopia (blue-blind)

#00C1CB

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63aeff;
/* rgb */ color: rgb(99, 174, 255);
/* oklch */ color: oklch(73.7% 0.140 251.9);

Tailwind

colors: {
  custom: {
    50: '#9cc5ff',
    500: '#63aeff',
    950: '#000000',
  },
}

SCSS

$custom: #63aeff;
$custom-light: #9cc5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63aeff",
  "rgb": {
    "r": 99,
    "g": 174,
    "b": 255
  },
  "hsl": {
    "h": 211.154,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.73695,
    "c": 0.14,
    "h": 251.9
  },
  "luminance": 0.40145
}

Semantic roles & 50–950 ramp

primary

#63AEFF

secondary

#F5E0C8

accent

#7700E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1218

muted

#7F8186

Preview Lab

Preview with #63AEFF

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

Preview Lab → · Contrast checker → · Palette generator →