#6364BB#6364BB

#6364BB is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.4% C 0.133 H 280.5°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#6364BB
RGB	rgb(99, 100, 187)
HSL	hsl(239, 39%, 56%)
HSV	hsv(239, 47%, 73%)
CMYK	cmyk(47.1%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(46.12, 22.91, -46.15)
CIE-LCH	lch(46.12, 51.53, 296.40°)
OKLab	oklab(54.44% 0.0243 -0.131)
OKLCH	oklch(54.44% 0.133 280.5)
XYZ	xyz(18.6697, 15.3539, 48.9839)
Luminance	0.1535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6364BB #BBBA63

analogous

#6390BB #6364BB #8E63BB

triadic

#6364BB #BB6364 #64BB63

tetradic

#6364BB #BB6390 #BBBA63 #63BB8E

square

#6364BB #BB6390 #BBBA63 #63BB8E

split-complementary

#6364BB #BB8E63 #90BB63

monochromatic

#323272 #44459D #6364BB #8E8ECE #B8B9E0

Accessibility & contrast

On white

5.16

#6364BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#6364BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6364BB

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6364BB	#FFFFFF	#000000	##FFFFFF
##6364BB	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4071BE

Deuteranopia (green-blind)

#3A6AB9

Tritanopia (blue-blind)

#447686

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #6364bb;
/* rgb */ color: rgb(99, 100, 187);
/* oklch */ color: oklch(54.4% 0.133 280.5);

Tailwind

colors: {
  custom: {
    50: '#9490d0',
    500: '#6364bb',
    950: '#000000',
  },
}

SCSS

$custom: #6364bb;
$custom-light: #9490d0;
$custom-dark: #000000;

JSON

{
  "hex": "#6364bb",
  "rgb": {
    "r": 99,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 239.318,
    "s": 39.286,
    "l": 56.078
  },
  "oklch": {
    "l": 0.5444,
    "c": 0.1332,
    "h": 280.5
  },
  "luminance": 0.15355
}

Semantic roles & 50–950 ramp

primary

#6364BB

secondary

#CFCFAB

accent

#CE59CF

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #6364BB

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

Preview Lab → · Contrast checker → · Palette generator →