#6357EB#6357EB

#6357EB is a mid, highly saturated blue. Relative luminance 0.155; OKLCH L 55.6% C 0.215 H 280.5°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#6357EB
RGB	rgb(99, 87, 235)
HSL	hsl(245, 79%, 63%)
HSV	hsv(245, 63%, 92%)
CMYK	cmyk(57.9%, 63%, 0%, 7.8%)
CIE-LAB	lab(46.27, 45.63, -73.36)
CIE-LCH	lch(46.27, 86.40, 301.88°)
OKLab	oklab(55.58% 0.0389 -0.211)
OKLCH	oklch(55.58% 0.215 280.5)
XYZ	xyz(23.5445, 15.4656, 80.3256)
Luminance	0.1547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6357EB #DFEB57

analogous

#5795EB #6357EB #AD57EB

triadic

#6357EB #EB6357 #57EB63

tetradic

#6357EB #EB5795 #DFEB57 #57EBAD

square

#6357EB #EB5795 #DFEB57 #57EBAD

split-complementary

#6357EB #EBAD57 #95EB57

monochromatic

#2215B2 #3020E4 #6357EB #968EF2 #C9C4F8

Accessibility & contrast

On white

5.13

#6357EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#6357EB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6357EB

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6357EB	#FFFFFF	#000000	##FFFFFF
##6357EB	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073F0

Deuteranopia (green-blind)

#0068E8

Tritanopia (blue-blind)

#037C99

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #6357eb;
/* rgb */ color: rgb(99, 87, 235);
/* oklch */ color: oklch(55.6% 0.215 280.5);

Tailwind

colors: {
  custom: {
    50: '#9c87f2',
    500: '#6357eb',
    950: '#000000',
  },
}

SCSS

$custom: #6357eb;
$custom-light: #9c87f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6357eb",
  "rgb": {
    "r": 99,
    "g": 87,
    "b": 235
  },
  "hsl": {
    "h": 244.865,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.55582,
    "c": 0.21458,
    "h": 280.5
  },
  "luminance": 0.15467
}

Semantic roles & 50–950 ramp

primary

#6357EB

secondary

#E5E9B4

accent

#DB0ACA

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #6357EB

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

Preview Lab → · Contrast checker → · Palette generator →