#63AFFF#63AFFF

#63AFFF is a light, vivid cyan. Relative luminance 0.405; OKLCH L 73.9% C 0.139 H 251.3°. Best body text is #000000 at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#63AFFF
RGB	rgb(99, 175, 255)
HSL	hsl(211, 100%, 69%)
HSV	hsv(211, 61%, 100%)
CMYK	cmyk(61.2%, 31.4%, 0%, 0%)
CIE-LAB	lab(69.84, -0.01, -46.64)
CIE-LCH	lch(69.84, 46.64, 269.99°)
OKLab	oklab(73.91% -0.0446 -0.1318)
OKLCH	oklch(73.91% 0.139 251.3)
XYZ	xyz(38.5190, 40.5290, 100.3813)
Luminance	0.4053 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AFFF #FFB363

analogous

#63FDFF #63AFFF #6563FF

triadic

#63AFFF #FF63AF #AFFF63

tetradic

#63AFFF #FF63FD #FFB363 #63FF65

square

#63AFFF #FF63FD #FFB363 #63FF65

split-complementary

#63AFFF #FF6563 #FDFF63

monochromatic

#0071E8 #2690FF #63AFFF #A0CEFF #DDEEFF

Accessibility & contrast

On white

2.31

#63AFFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.11

#63AFFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AFFF

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AFFF	#FFFFFF	#000000	##000000
##63AFFF	1.00	2.31	9.11	9.11
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.11	21.00	1.00	1.00
##000000	9.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DB3FF

Deuteranopia (green-blind)

#78A4FD

Tritanopia (blue-blind)

#00C2CC

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63afff;
/* rgb */ color: rgb(99, 175, 255);
/* oklch */ color: oklch(73.9% 0.139 251.3);

Tailwind

colors: {
  custom: {
    50: '#9cc6ff',
    500: '#63afff',
    950: '#000000',
  },
}

SCSS

$custom: #63afff;
$custom-light: #9cc6ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63afff",
  "rgb": {
    "r": 99,
    "g": 175,
    "b": 255
  },
  "hsl": {
    "h": 210.769,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.73911,
    "c": 0.13912,
    "h": 251.3
  },
  "luminance": 0.40533
}

Semantic roles & 50–950 ramp

primary

#63AFFF

secondary

#F5DFC8

accent

#7600E6

background

#FAFCFF

surface

#F4F8FF

border

#CED1D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #63AFFF

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

Preview Lab → · Contrast checker → · Palette generator →