#5B5BE9#5B5BE9

#5B5BE9 is a mid, highly saturated blue. Relative luminance 0.156; OKLCH L 55.5% C 0.209 H 277.2°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#5B5BE9
RGB	rgb(91, 91, 233)
HSL	hsl(240, 76%, 64%)
HSV	hsv(240, 61%, 91%)
CMYK	cmyk(60.9%, 60.9%, 0%, 8.6%)
CIE-LAB	lab(46.43, 41.39, -71.99)
CIE-LCH	lch(46.43, 83.04, 299.90°)
OKLab	oklab(55.51% 0.026 -0.2072)
OKLCH	oklch(55.51% 0.209 277.2)
XYZ	xyz(22.7587, 15.5877, 78.8844)
Luminance	0.1559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5BE9 #E9E95B

analogous

#5BA2E9 #5B5BE9 #A25BE9

triadic

#5B5BE9 #E95B5B #5BE95B

tetradic

#5B5BE9 #E95BA2 #E9E95B #5BE9A2

square

#5B5BE9 #E95BA2 #E9E95B #5BE9A2

split-complementary

#5B5BE9 #E9A25B #A2E95B

monochromatic

#1818B2 #2525E2 #5B5BE9 #9191F0 #C7C7F7

Accessibility & contrast

On white

5.10

#5B5BE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#5B5BE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5BE9

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5BE9	#FFFFFF	#000000	##FFFFFF
##5B5BE9	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074EE

Deuteranopia (green-blind)

#0068E6

Tritanopia (blue-blind)

#007E99

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #5b5be9;
/* rgb */ color: rgb(91, 91, 233);
/* oklch */ color: oklch(55.5% 0.209 277.2);

Tailwind

colors: {
  custom: {
    50: '#978af1',
    500: '#5b5be9',
    950: '#000000',
  },
}

SCSS

$custom: #5b5be9;
$custom-light: #978af1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5be9",
  "rgb": {
    "r": 91,
    "g": 91,
    "b": 233
  },
  "hsl": {
    "h": 240,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.55507,
    "c": 0.20883,
    "h": 277.2
  },
  "luminance": 0.1559
}

Semantic roles & 50–950 ramp

primary

#5B5BE9

secondary

#E9E9B7

accent

#D90DD9

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #5B5BE9

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

Preview Lab → · Contrast checker → · Palette generator →