#5B5BEF#5B5BEF

#5B5BEF is a mid, highly saturated blue. Relative luminance 0.159; OKLCH L 56.0% C 0.216 H 276.8°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#5B5BEF
RGB	rgb(91, 91, 239)
HSL	hsl(240, 82%, 65%)
HSV	hsv(240, 62%, 94%)
CMYK	cmyk(61.9%, 61.9%, 0%, 6.3%)
CIE-LAB	lab(46.89, 43.32, -74.61)
CIE-LCH	lch(46.89, 86.28, 300.14°)
OKLab	oklab(55.99% 0.0257 -0.2149)
OKLCH	oklch(55.99% 0.216 276.8)
XYZ	xyz(23.6304, 15.9364, 83.4754)
Luminance	0.1594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5BEF #EFEF5B

analogous

#5BA5EF #5B5BEF #A55BEF

triadic

#5B5BEF #EF5B5B #5BEF5B

tetradic

#5B5BEF #EF5BA5 #EFEF5B #5BEFA5

square

#5B5BEF #EF5BA5 #EFEF5B #5BEFA5

split-complementary

#5B5BEF #EFA55B #A5EF5B

monochromatic

#1212BD #2323EA #5B5BEF #9393F4 #CBCBFA

Accessibility & contrast

On white

5.01

#5B5BEF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#5B5BEF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5BEF

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5BEF	#FFFFFF	#000000	##FFFFFF
##5B5BEF	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F4

Deuteranopia (green-blind)

#0069EC

Tritanopia (blue-blind)

#00809D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #5b5bef;
/* rgb */ color: rgb(91, 91, 239);
/* oklch */ color: oklch(56.0% 0.216 276.8);

Tailwind

colors: {
  custom: {
    50: '#988af5',
    500: '#5b5bef',
    950: '#000000',
  },
}

SCSS

$custom: #5b5bef;
$custom-light: #988af5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5bef",
  "rgb": {
    "r": 91,
    "g": 91,
    "b": 239
  },
  "hsl": {
    "h": 240,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.5599,
    "c": 0.21643,
    "h": 276.8
  },
  "luminance": 0.15938
}

Semantic roles & 50–950 ramp

primary

#5B5BEF

secondary

#ECECBA

accent

#DF07DF

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #5B5BEF

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

Preview Lab → · Contrast checker → · Palette generator →