#63A3FD#63A3FD

#63A3FD is a light, vivid blue. Relative luminance 0.359; OKLCH L 71.2% C 0.148 H 257.1°. Best body text is #000000 at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#63A3FD
RGB	rgb(99, 163, 253)
HSL	hsl(215, 97%, 69%)
HSV	hsv(215, 61%, 99%)
CMYK	cmyk(60.9%, 35.6%, 0%, 0.8%)
CIE-LAB	lab(66.47, 6.17, -50.88)
CIE-LCH	lch(66.47, 51.25, 276.92°)
OKLab	oklab(71.24% -0.0329 -0.1442)
OKLCH	oklch(71.24% 0.148 257.1)
XYZ	xyz(35.9661, 35.9356, 97.9503)
Luminance	0.3594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A3FD #FDBD63

analogous

#63F0FD #63A3FD #7063FD

triadic

#63A3FD #FD63A3 #A3FD63

tetradic

#63A3FD #FD63F0 #FDBD63 #63FD70

square

#63A3FD #FD63F0 #FDBD63 #63FD70

split-complementary

#63A3FD #FD7063 #F0FD63

monochromatic

#0360E3 #277FFC #63A3FD #9FC7FE #DCEAFF

Accessibility & contrast

On white

2.56

#63A3FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.19

#63A3FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3FD

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A3FD	#FFFFFF	#000000	##000000
##63A3FD	1.00	2.56	8.19	8.19
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.19	21.00	1.00	1.00
##000000	8.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CAAFF

Deuteranopia (green-blind)

#689BFB

Tritanopia (blue-blind)

#00B7C4

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63a3fd;
/* rgb */ color: rgb(99, 163, 253);
/* oklch */ color: oklch(71.2% 0.148 257.1);

Tailwind

colors: {
  custom: {
    50: '#9cbdfe',
    500: '#63a3fd',
    950: '#000000',
  },
}

SCSS

$custom: #63a3fd;
$custom-light: #9cbdfe;
$custom-dark: #000000;

JSON

{
  "hex": "#63a3fd",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 253
  },
  "hsl": {
    "h": 215.065,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.71242,
    "c": 0.14795,
    "h": 257.1
  },
  "luminance": 0.35939
}

Semantic roles & 50–950 ramp

primary

#63A3FD

secondary

#F4E2C7

accent

#8600E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1218

muted

#7F8186

Preview Lab

Preview with #63A3FD

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

Preview Lab → · Contrast checker → · Palette generator →