#5B64DB#5B64DB

#5B64DB is a mid, vivid blue. Relative luminance 0.165; OKLCH L 56.0% C 0.179 H 275.7°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#5B64DB
RGB	rgb(91, 100, 219)
HSL	hsl(236, 64%, 61%)
HSV	hsv(236, 58%, 86%)
CMYK	cmyk(58.4%, 54.3%, 0%, 14.1%)
CIE-LAB	lab(47.56, 31.41, -62.23)
CIE-LCH	lch(47.56, 69.71, 296.78°)
OKLab	oklab(56.03% 0.0179 -0.1784)
OKLCH	oklch(56.03% 0.179 275.7)
XYZ	xyz(21.6536, 16.4513, 69.0385)
Luminance	0.1645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B64DB #DBD25B

analogous

#5BA4DB #5B64DB #925BDB

triadic

#5B64DB #DB5B64 #64DB5B

tetradic

#5B64DB #DB5BA4 #DBD25B #5BDB92

square

#5B64DB #DB5BA4 #DBD25B #5BDB92

split-complementary

#5B64DB #DB925B #A4DB5B

monochromatic

#222A9A #2D38CC #5B64DB #8D93E6 #BFC3F1

Accessibility & contrast

On white

4.89

#5B64DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#5B64DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B64DB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B64DB	#FFFFFF	#000000	##FFFFFF
##5B64DB	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F76DF

Deuteranopia (green-blind)

#006CD9

Tritanopia (blue-blind)

#008096

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5b64db;
/* rgb */ color: rgb(91, 100, 219);
/* oklch */ color: oklch(56.0% 0.179 275.7);

Tailwind

colors: {
  custom: {
    50: '#9490e7',
    500: '#5b64db',
    950: '#000000',
  },
}

SCSS

$custom: #5b64db;
$custom-light: #9490e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b64db",
  "rgb": {
    "r": 91,
    "g": 100,
    "b": 219
  },
  "hsl": {
    "h": 235.781,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.56029,
    "c": 0.17932,
    "h": 275.7
  },
  "luminance": 0.16453
}

Semantic roles & 50–950 ramp

primary

#5B64DB

secondary

#E1DEB1

accent

#BF1ACC

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5B64DB

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

Preview Lab → · Contrast checker → · Palette generator →