#63A3F8#63A3F8

#63A3F8 is a light, vivid cyan. Relative luminance 0.356; OKLCH L 71.0% C 0.142 H 256.0°. Best body text is #000000 at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#63A3F8
RGB	rgb(99, 163, 248)
HSL	hsl(214, 91%, 68%)
HSV	hsv(214, 60%, 97%)
CMYK	cmyk(60.1%, 34.3%, 0%, 2.7%)
CIE-LAB	lab(66.23, 4.56, -48.53)
CIE-LCH	lch(66.23, 48.75, 275.37°)
OKLab	oklab(70.97% -0.0341 -0.1374)
OKLCH	oklch(70.97% 0.142 256)
XYZ	xyz(35.1800, 35.6212, 93.8104)
Luminance	0.3562 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A3F8 #F8B863

analogous

#63EEF8 #63A3F8 #6D63F8

triadic

#63A3F8 #F863A3 #A3F863

tetradic

#63A3F8 #F863EE #F8B863 #63F86D

square

#63A3F8 #F863EE #F8B863 #63F86D

split-complementary

#63A3F8 #F86D63 #EEF863

monochromatic

#0A62D7 #2880F5 #63A3F8 #9EC6FB #D8E8FD

Accessibility & contrast

On white

2.58

#63A3F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.12

#63A3F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3F8

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A3F8	#FFFFFF	#000000	##000000
##63A3F8	1.00	2.58	8.12	8.12
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.12	21.00	1.00	1.00
##000000	8.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7FA9FC

Deuteranopia (green-blind)

#6B9BF6

Tritanopia (blue-blind)

#00B6C2

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63a3f8;
/* rgb */ color: rgb(99, 163, 248);
/* oklch */ color: oklch(71.0% 0.142 256.0);

Tailwind

colors: {
  custom: {
    50: '#9bbdfb',
    500: '#63a3f8',
    950: '#000000',
  },
}

SCSS

$custom: #63a3f8;
$custom-light: #9bbdfb;
$custom-dark: #000000;

JSON

{
  "hex": "#63a3f8",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 248
  },
  "hsl": {
    "h": 214.228,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.70975,
    "c": 0.14157,
    "h": 256
  },
  "luminance": 0.35624
}

Semantic roles & 50–950 ramp

primary

#63A3F8

secondary

#F2DFC5

accent

#8300E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A3F8

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

Preview Lab → · Contrast checker → · Palette generator →