#63A8FB#63A8FB

#63A8FB is a light, vivid cyan. Relative luminance 0.376; OKLCH L 72.2% C 0.141 H 254.1°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#63A8FB
RGB	rgb(99, 168, 251)
HSL	hsl(213, 95%, 69%)
HSV	hsv(213, 61%, 98%)
CMYK	cmyk(60.6%, 33.1%, 0%, 1.6%)
CIE-LAB	lab(67.74, 2.67, -47.79)
CIE-LCH	lch(67.74, 47.86, 273.19°)
OKLab	oklab(72.2% -0.0385 -0.1352)
OKLCH	oklch(72.2% 0.141 254.1)
XYZ	xyz(36.5545, 37.6196, 96.5830)
Luminance	0.3762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A8FB #FBB663

analogous

#63F4FB #63A8FB #6A63FB

triadic

#63A8FB #FB63A8 #A8FB63

tetradic

#63A8FB #FB63F4 #FBB663 #63FB6A

square

#63A8FB #FB63F4 #FBB663 #63FB6A

split-complementary

#63A8FB #FB6A63 #F4FB63

monochromatic

#0668DE #2787F9 #63A8FB #9FC9FD #DAEBFE

Accessibility & contrast

On white

2.46

#63A8FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.52

#63A8FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8FB

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A8FB	#FFFFFF	#000000	##000000
##63A8FB	1.00	2.46	8.52	8.52
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.52	21.00	1.00	1.00
##000000	8.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85ADFE

Deuteranopia (green-blind)

#709EF9

Tritanopia (blue-blind)

#00BBC6

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #63a8fb;
/* rgb */ color: rgb(99, 168, 251);
/* oklch */ color: oklch(72.2% 0.141 254.1);

Tailwind

colors: {
  custom: {
    50: '#9bc1fd',
    500: '#63a8fb',
    950: '#000000',
  },
}

SCSS

$custom: #63a8fb;
$custom-light: #9bc1fd;
$custom-dark: #000000;

JSON

{
  "hex": "#63a8fb",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 251
  },
  "hsl": {
    "h": 212.763,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.72201,
    "c": 0.14055,
    "h": 254.1
  },
  "luminance": 0.37623
}

Semantic roles & 50–950 ramp

primary

#63A8FB

secondary

#F4DFC6

accent

#7D00E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A8FB

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

Preview Lab → · Contrast checker → · Palette generator →