#6357DD#6357DD

#6357DD is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.5% C 0.197 H 281.7°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#6357DD
RGB	rgb(99, 87, 221)
HSL	hsl(245, 66%, 60%)
HSV	hsv(245, 61%, 87%)
CMYK	cmyk(55.2%, 60.6%, 0%, 13.3%)
CIE-LAB	lab(45.20, 41.32, -67.16)
CIE-LCH	lch(45.20, 78.85, 301.60°)
OKLab	oklab(54.47% 0.0399 -0.1928)
OKLCH	oklch(54.47% 0.197 281.7)
XYZ	xyz(21.6009, 14.6881, 70.0894)
Luminance	0.1469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6357DD #D1DD57

analogous

#578EDD #6357DD #A657DD

triadic

#6357DD #DD6357 #57DD63

tetradic

#6357DD #DD578E #D1DD57 #57DDA6

square

#6357DD #DD578E #D1DD57 #57DDA6

split-complementary

#6357DD #DDA657 #8EDD57

monochromatic

#2A1F9A #382ACD #6357DD #928AE7 #C2BDF2

Accessibility & contrast

On white

5.33

#6357DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#6357DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6357DD

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6357DD	#FFFFFF	#000000	##FFFFFF
##6357DD	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070E1

Deuteranopia (green-blind)

#0066DA

Tritanopia (blue-blind)

#277792

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #6357dd;
/* rgb */ color: rgb(99, 87, 221);
/* oklch */ color: oklch(54.5% 0.197 281.7);

Tailwind

colors: {
  custom: {
    50: '#9a87e8',
    500: '#6357dd',
    950: '#000000',
  },
}

SCSS

$custom: #6357dd;
$custom-light: #9a87e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6357dd",
  "rgb": {
    "r": 99,
    "g": 87,
    "b": 221
  },
  "hsl": {
    "h": 245.373,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.54474,
    "c": 0.19689,
    "h": 281.7
  },
  "luminance": 0.14689
}

Semantic roles & 50–950 ramp

primary

#6357DD

secondary

#DDE1AE

accent

#CE17BE

background

#FAF8FE

surface

#F3EFFD

border

#CDCAD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #6357DD

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

Preview Lab → · Contrast checker → · Palette generator →