#5B5EF8#5B5EF8

#5B5EF8 is a mid, highly saturated blue. Relative luminance 0.170; OKLCH L 57.2% C 0.224 H 275.8°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5B5EF8
RGB	rgb(91, 94, 248)
HSL	hsl(239, 92%, 66%)
HSV	hsv(239, 63%, 97%)
CMYK	cmyk(63.3%, 62.1%, 0%, 2.7%)
CIE-LAB	lab(48.27, 44.44, -77.41)
CIE-LCH	lch(48.27, 89.25, 299.86°)
OKLab	oklab(57.22% 0.0228 -0.2231)
OKLCH	oklch(57.22% 0.224 275.8)
XYZ	xyz(25.2548, 17.0047, 90.7401)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5EF8 #F8F55B

analogous

#5BACF8 #5B5EF8 #A75BF8

triadic

#5B5EF8 #F85B5E #5EF85B

tetradic

#5B5EF8 #F85BAC #F8F55B #5BF8A7

square

#5B5EF8 #F85BAC #F8F55B #5BF8A7

split-complementary

#5B5EF8 #F8A75B #ACF85B

monochromatic

#090DD0 #2024F5 #5B5EF8 #9698FB #D0D1FD

Accessibility & contrast

On white

4.77

#5B5EF8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#5B5EF8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5EF8

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5EF8	#FFFFFF	#000000	##FFFFFF
##5B5EF8	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFD

Deuteranopia (green-blind)

#006CF5

Tritanopia (blue-blind)

#0085A2

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5b5ef8;
/* rgb */ color: rgb(91, 94, 248);
/* oklch */ color: oklch(57.2% 0.224 275.8);

Tailwind

colors: {
  custom: {
    50: '#9a8cfc',
    500: '#5b5ef8',
    950: '#000000',
  },
}

SCSS

$custom: #5b5ef8;
$custom-light: #9a8cfc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5ef8",
  "rgb": {
    "r": 91,
    "g": 94,
    "b": 248
  },
  "hsl": {
    "h": 238.854,
    "s": 91.813,
    "l": 66.471
  },
  "oklch": {
    "l": 0.57215,
    "c": 0.22424,
    "h": 275.8
  },
  "luminance": 0.17007
}

Semantic roles & 50–950 ramp

primary

#5B5EF8

secondary

#F1F0BE

accent

#E100E6

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0C18

muted

#7F7D86

Preview Lab

Preview with #5B5EF8

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

Preview Lab → · Contrast checker → · Palette generator →