#5B5CDB#5B5CDB

#5B5CDB is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.6% C 0.189 H 277.7°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#5B5CDB
RGB	rgb(91, 92, 219)
HSL	hsl(240, 64%, 61%)
HSV	hsv(240, 58%, 86%)
CMYK	cmyk(58.4%, 58%, 0%, 14.1%)
CIE-LAB	lab(45.62, 36.29, -65.37)
CIE-LCH	lch(45.62, 74.77, 299.04°)
OKLab	oklab(54.59% 0.0255 -0.1877)
OKLCH	oklch(54.59% 0.189 277.7)
XYZ	xyz(20.9236, 14.9914, 68.7951)
Luminance	0.1499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5CDB #DBDA5B

analogous

#5B9CDB #5B5CDB #9A5BDB

triadic

#5B5CDB #DB5B5C #5CDB5B

tetradic

#5B5CDB #DB5B9C #DBDA5B #5BDB9A

square

#5B5CDB #DB5B9C #DBDA5B #5BDB9A

split-complementary

#5B5CDB #DB9A5B #9CDB5B

monochromatic

#22239A #2D2ECC #5B5CDB #8D8EE6 #BFC0F1

Accessibility & contrast

On white

5.25

#5B5CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#5B5CDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5CDB

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5CDB	#FFFFFF	#000000	##FFFFFF
##5B5CDB	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DF

Deuteranopia (green-blind)

#0067D8

Tritanopia (blue-blind)

#007A93

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5b5cdb;
/* rgb */ color: rgb(91, 92, 219);
/* oklch */ color: oklch(54.6% 0.189 277.7);

Tailwind

colors: {
  custom: {
    50: '#958ae7',
    500: '#5b5cdb',
    950: '#000000',
  },
}

SCSS

$custom: #5b5cdb;
$custom-light: #958ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5cdb",
  "rgb": {
    "r": 91,
    "g": 92,
    "b": 219
  },
  "hsl": {
    "h": 239.531,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.54586,
    "c": 0.18946,
    "h": 277.7
  },
  "luminance": 0.14993
}

Semantic roles & 50–950 ramp

primary

#5B5CDB

secondary

#E1E1B1

accent

#CA1ACC

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5B5CDB

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

Preview Lab → · Contrast checker → · Palette generator →