#63A5F8#63A5F8

#63A5F8 is a light, vivid cyan. Relative luminance 0.363; OKLCH L 71.4% C 0.140 H 255.0°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#63A5F8
RGB	rgb(99, 165, 248)
HSL	hsl(213, 91%, 68%)
HSV	hsv(213, 60%, 97%)
CMYK	cmyk(60.1%, 33.5%, 0%, 2.7%)
CIE-LAB	lab(66.78, 3.41, -47.67)
CIE-LCH	lch(66.78, 47.79, 274.10°)
OKLab	oklab(71.4% -0.0362 -0.1349)
OKLCH	oklch(71.4% 0.14 255)
XYZ	xyz(35.5379, 36.3370, 93.9297)
Luminance	0.3634 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A5F8 #F8B663

analogous

#63EFF8 #63A5F8 #6B63F8

triadic

#63A5F8 #F863A5 #A5F863

tetradic

#63A5F8 #F863EF #F8B663 #63F86B

square

#63A5F8 #F863EF #F8B663 #63F86B

split-complementary

#63A5F8 #F86B63 #EFF863

monochromatic

#0A65D7 #2883F5 #63A5F8 #9EC7FB #D8E9FD

Accessibility & contrast

On white

2.54

#63A5F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#63A5F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A5F8

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A5F8	#FFFFFF	#000000	##000000
##63A5F8	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82AAFB

Deuteranopia (green-blind)

#6E9CF6

Tritanopia (blue-blind)

#00B8C3

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63a5f8;
/* rgb */ color: rgb(99, 165, 248);
/* oklch */ color: oklch(71.4% 0.140 255.0);

Tailwind

colors: {
  custom: {
    50: '#9bbffb',
    500: '#63a5f8',
    950: '#000000',
  },
}

SCSS

$custom: #63a5f8;
$custom-light: #9bbffb;
$custom-dark: #000000;

JSON

{
  "hex": "#63a5f8",
  "rgb": {
    "r": 99,
    "g": 165,
    "b": 248
  },
  "hsl": {
    "h": 213.423,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.71402,
    "c": 0.13963,
    "h": 255
  },
  "luminance": 0.3634
}

Semantic roles & 50–950 ramp

primary

#63A5F8

secondary

#F2DEC5

accent

#8000E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A5F8

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

Preview Lab → · Contrast checker → · Palette generator →