#6563EB#6563EB

#6563EB is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.7% C 0.200 H 278.8°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#6563EB
RGB	rgb(101, 99, 235)
HSL	hsl(241, 77%, 65%)
HSV	hsv(241, 58%, 92%)
CMYK	cmyk(57%, 57.9%, 0%, 7.8%)
CIE-LAB	lab(49.11, 38.92, -68.72)
CIE-LCH	lch(49.11, 78.98, 299.53°)
OKLab	oklab(57.71% 0.0304 -0.1973)
OKLCH	oklch(57.71% 0.2 278.8)
XYZ	xyz(24.8193, 17.6868, 80.6872)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6563EB #E9EB63

analogous

#63A5EB #6563EB #A963EB

triadic

#6563EB #EB6563 #63EB65

tetradic

#6563EB #EB63A5 #E9EB63 #63EBA9

square

#6563EB #EB63A5 #E9EB63 #63EBA9

split-complementary

#6563EB #EBA963 #A5EB63

monochromatic

#1A18BC #2F2DE4 #6563EB #9B99F2 #D0CFF9

Accessibility & contrast

On white

4.63

#6563EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#6563EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6563EB

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6563EB	#FFFFFF	#000000	##FFFFFF
##6563EB	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AF0

Deuteranopia (green-blind)

#006FE8

Tritanopia (blue-blind)

#10839D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #6563eb;
/* rgb */ color: rgb(101, 99, 235);
/* oklch */ color: oklch(57.7% 0.200 278.8);

Tailwind

colors: {
  custom: {
    50: '#9c8ff2',
    500: '#6563eb',
    950: '#000000',
  },
}

SCSS

$custom: #6563eb;
$custom-light: #9c8ff2;
$custom-dark: #000000;

JSON

{
  "hex": "#6563eb",
  "rgb": {
    "r": 101,
    "g": 99,
    "b": 235
  },
  "hsl": {
    "h": 240.882,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.5771,
    "c": 0.19959,
    "h": 278.8
  },
  "luminance": 0.17689
}

Semantic roles & 50–950 ramp

primary

#6563EB

secondary

#EBECBE

accent

#DA0CD6

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #6563EB

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

Preview Lab → · Contrast checker → · Palette generator →