#63A5FB#63A5FB

#63A5FB is a light, vivid cyan. Relative luminance 0.365; OKLCH L 71.6% C 0.143 H 255.7°. Best body text is #000000 at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#63A5FB
RGB	rgb(99, 165, 251)
HSL	hsl(214, 95%, 69%)
HSV	hsv(214, 61%, 98%)
CMYK	cmyk(60.6%, 34.3%, 0%, 1.6%)
CIE-LAB	lab(66.92, 4.38, -49.08)
CIE-LCH	lch(66.92, 49.28, 275.10°)
OKLab	oklab(71.56% -0.0354 -0.139)
OKLCH	oklch(71.56% 0.143 255.7)
XYZ	xyz(36.0071, 36.5246, 96.4005)
Luminance	0.3653 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A5FB #FBB963

analogous

#63F1FB #63A5FB #6D63FB

triadic

#63A5FB #FB63A5 #A5FB63

tetradic

#63A5FB #FB63F1 #FBB963 #63FB6D

square

#63A5FB #FB63F1 #FBB963 #63FB6D

split-complementary

#63A5FB #FB6D63 #F1FB63

monochromatic

#0664DE #2783F9 #63A5FB #9FC7FD #DAEAFE

Accessibility & contrast

On white

2.53

#63A5FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.31

#63A5FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A5FB

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A5FB	#FFFFFF	#000000	##000000
##63A5FB	1.00	2.53	8.31	8.31
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.31	21.00	1.00	1.00
##000000	8.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80ABFF

Deuteranopia (green-blind)

#6C9CF9

Tritanopia (blue-blind)

#00B9C4

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #63a5fb;
/* rgb */ color: rgb(99, 165, 251);
/* oklch */ color: oklch(71.6% 0.143 255.7);

Tailwind

colors: {
  custom: {
    50: '#9bbffd',
    500: '#63a5fb',
    950: '#000000',
  },
}

SCSS

$custom: #63a5fb;
$custom-light: #9bbffd;
$custom-dark: #000000;

JSON

{
  "hex": "#63a5fb",
  "rgb": {
    "r": 99,
    "g": 165,
    "b": 251
  },
  "hsl": {
    "h": 213.947,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.7156,
    "c": 0.14342,
    "h": 255.7
  },
  "luminance": 0.36528
}

Semantic roles & 50–950 ramp

primary

#63A5FB

secondary

#F4E0C6

accent

#8200E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A5FB

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

Preview Lab → · Contrast checker → · Palette generator →