#5B5BF3#5B5BF3

#5B5BF3 is a mid, highly saturated blue. Relative luminance 0.162; OKLCH L 56.3% C 0.221 H 276.6°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5B5BF3
RGB	rgb(91, 91, 243)
HSL	hsl(240, 86%, 65%)
HSV	hsv(240, 63%, 95%)
CMYK	cmyk(62.6%, 62.6%, 0%, 4.7%)
CIE-LAB	lab(47.20, 44.60, -76.35)
CIE-LCH	lch(47.20, 88.42, 300.29°)
OKLab	oklab(56.32% 0.0254 -0.22)
OKLCH	oklch(56.32% 0.221 276.6)
XYZ	xyz(24.2279, 16.1754, 86.6221)
Luminance	0.1618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5BF3 #F3F35B

analogous

#5BA7F3 #5B5BF3 #A75BF3

triadic

#5B5BF3 #F35B5B #5BF35B

tetradic

#5B5BF3 #F35BA7 #F3F35B #5BF3A7

square

#5B5BF3 #F35BA7 #F3F35B #5BF3A7

split-complementary

#5B5BF3 #F3A75B #A7F35B

monochromatic

#0E0EC5 #2222EF #5B5BF3 #9494F7 #CDCDFB

Accessibility & contrast

On white

4.96

#5B5BF3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#5B5BF3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5BF3

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5BF3	#FFFFFF	#000000	##FFFFFF
##5B5BF3	1.00	4.96	4.24	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F8

Deuteranopia (green-blind)

#0069F0

Tritanopia (blue-blind)

#00829F

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #5b5bf3;
/* rgb */ color: rgb(91, 91, 243);
/* oklch */ color: oklch(56.3% 0.221 276.6);

Tailwind

colors: {
  custom: {
    50: '#998af8',
    500: '#5b5bf3',
    950: '#000000',
  },
}

SCSS

$custom: #5b5bf3;
$custom-light: #998af8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5bf3",
  "rgb": {
    "r": 91,
    "g": 91,
    "b": 243
  },
  "hsl": {
    "h": 240,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.56316,
    "c": 0.22146,
    "h": 276.6
  },
  "luminance": 0.16177
}

Semantic roles & 50–950 ramp

primary

#5B5BF3

secondary

#EEEEBB

accent

#E303E3

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5B5BF3

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

Preview Lab → · Contrast checker → · Palette generator →