#5B5DDB#5B5DDB

#5B5DDB is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.8% C 0.188 H 277.5°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#5B5DDB
RGB	rgb(91, 93, 219)
HSL	hsl(239, 64%, 61%)
HSV	hsv(239, 58%, 86%)
CMYK	cmyk(58.4%, 57.5%, 0%, 14.1%)
CIE-LAB	lab(45.86, 35.68, -64.99)
CIE-LCH	lch(45.86, 74.14, 298.77°)
OKLab	oklab(54.76% 0.0246 -0.1866)
OKLCH	oklch(54.76% 0.188 277.5)
XYZ	xyz(21.0108, 15.1658, 68.8242)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5DDB #DBD95B

analogous

#5B9DDB #5B5DDB #995BDB

triadic

#5B5DDB #DB5B5D #5DDB5B

tetradic

#5B5DDB #DB5B9D #DBD95B #5BDB99

square

#5B5DDB #DB5B9D #DBD95B #5BDB99

split-complementary

#5B5DDB #DB995B #9DDB5B

monochromatic

#22249A #2D2FCC #5B5DDB #8D8FE6 #BFC0F1

Accessibility & contrast

On white

5.21

#5B5DDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#5B5DDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5DDB

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5DDB	#FFFFFF	#000000	##FFFFFF
##5B5DDB	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DF

Deuteranopia (green-blind)

#0067D8

Tritanopia (blue-blind)

#007B93

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5b5ddb;
/* rgb */ color: rgb(91, 93, 219);
/* oklch */ color: oklch(54.8% 0.188 277.5);

Tailwind

colors: {
  custom: {
    50: '#958be7',
    500: '#5b5ddb',
    950: '#000000',
  },
}

SCSS

$custom: #5b5ddb;
$custom-light: #958be7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5ddb",
  "rgb": {
    "r": 91,
    "g": 93,
    "b": 219
  },
  "hsl": {
    "h": 239.063,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.54763,
    "c": 0.1882,
    "h": 277.5
  },
  "luminance": 0.15167
}

Semantic roles & 50–950 ramp

primary

#5B5DDB

secondary

#E1E0B1

accent

#C91ACC

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5B5DDB

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

Preview Lab → · Contrast checker → · Palette generator →