#5B64BB#5B64BB

#5B64BB is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.8% C 0.135 H 276.4°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#5B64BB
RGB	rgb(91, 100, 187)
HSL	hsl(234, 41%, 55%)
HSV	hsv(234, 51%, 73%)
CMYK	cmyk(51.3%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(45.53, 21.05, -47.12)
CIE-LCH	lch(45.53, 51.61, 294.07°)
OKLab	oklab(53.85% 0.0151 -0.134)
OKLCH	oklch(53.85% 0.135 276.4)
XYZ	xyz(17.8384, 14.9253, 48.9450)
Luminance	0.1493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B64BB #BBB25B

analogous

#5B94BB #5B64BB #825BBB

triadic

#5B64BB #BB5B64 #64BB5B

tetradic

#5B64BB #BB5B94 #BBB25B #5BBB82

square

#5B64BB #BB5B94 #BBB25B #5BBB82

split-complementary

#5B64BB #BB825B #94BB5B

monochromatic

#2E346E #404899 #5B64BB #868DCD #B2B6DF

Accessibility & contrast

On white

5.27

#5B64BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#5B64BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B64BB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B64BB	#FFFFFF	#000000	##FFFFFF
##5B64BB	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E70BE

Deuteranopia (green-blind)

#3468B9

Tritanopia (blue-blind)

#337786

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5b64bb;
/* rgb */ color: rgb(91, 100, 187);
/* oklch */ color: oklch(53.8% 0.135 276.4);

Tailwind

colors: {
  custom: {
    50: '#9090d0',
    500: '#5b64bb',
    950: '#000000',
  },
}

SCSS

$custom: #5b64bb;
$custom-light: #9090d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b64bb",
  "rgb": {
    "r": 91,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 234.375,
    "s": 41.379,
    "l": 54.51
  },
  "oklch": {
    "l": 0.53849,
    "c": 0.13484,
    "h": 276.4
  },
  "luminance": 0.14926
}

Semantic roles & 50–950 ramp

primary

#5B64BB

secondary

#CDC9A5

accent

#C657D1

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #5B64BB

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

Preview Lab → · Contrast checker → · Palette generator →