#5B6FDB#5B6FDB

#5B6FDB is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.1% C 0.165 H 272.4°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#5B6FDB
RGB	rgb(91, 111, 219)
HSL	hsl(231, 64%, 61%)
HSV	hsv(231, 58%, 86%)
CMYK	cmyk(58.4%, 49.3%, 0%, 14.1%)
CIE-LAB	lab(50.34, 24.63, -57.75)
CIE-LCH	lch(50.34, 62.78, 293.10°)
OKLab	oklab(58.12% 0.0069 -0.1651)
OKLCH	oklch(58.12% 0.165 272.4)
XYZ	xyz(22.7808, 18.7057, 69.4142)
Luminance	0.1871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6FDB #DBC75B

analogous

#5BAFDB #5B6FDB #875BDB

triadic

#5B6FDB #DB5B6F #6FDB5B

tetradic

#5B6FDB #DB5BAF #DBC75B #5BDB87

square

#5B6FDB #DB5BAF #DBC75B #5BDB87

split-complementary

#5B6FDB #DB875B #AFDB5B

monochromatic

#22359A #2D46CC #5B6FDB #8D9BE6 #BFC7F1

Accessibility & contrast

On white

4.43

#5B6FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#5B6FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B6FDB

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6FDB	#FFFFFF	#000000	##000000
##5B6FDB	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#377EDF

Deuteranopia (green-blind)

#1F72D9

Tritanopia (blue-blind)

#00889B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5b6fdb;
/* rgb */ color: rgb(91, 111, 219);
/* oklch */ color: oklch(58.1% 0.165 272.4);

Tailwind

colors: {
  custom: {
    50: '#9498e7',
    500: '#5b6fdb',
    950: '#000000',
  },
}

SCSS

$custom: #5b6fdb;
$custom-light: #9498e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6fdb",
  "rgb": {
    "r": 91,
    "g": 111,
    "b": 219
  },
  "hsl": {
    "h": 230.625,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.5812,
    "c": 0.16527,
    "h": 272.4
  },
  "luminance": 0.18707
}

Semantic roles & 50–950 ramp

primary

#5B6FDB

secondary

#E1DAB1

accent

#B01ACC

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5B6FDB

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

Preview Lab → · Contrast checker → · Palette generator →