#5B73E9#5B73E9

#5B73E9 is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.8% C 0.179 H 271.4°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#5B73E9
RGB	rgb(91, 115, 233)
HSL	hsl(230, 76%, 64%)
HSV	hsv(230, 61%, 91%)
CMYK	cmyk(60.9%, 50.6%, 0%, 8.6%)
CIE-LAB	lab(52.25, 26.81, -62.56)
CIE-LCH	lch(52.25, 68.06, 293.20°)
OKLab	oklab(59.85% 0.0042 -0.1792)
OKLCH	oklch(59.85% 0.179 271.4)
XYZ	xyz(25.1482, 20.3667, 79.6809)
Luminance	0.2037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B73E9 #E9D15B

analogous

#5BBAE9 #5B73E9 #8A5BE9

triadic

#5B73E9 #E95B73 #73E95B

tetradic

#5B73E9 #E95BBA #E9D15B #5BE98A

square

#5B73E9 #E95BBA #E9D15B #5BE98A

split-complementary

#5B73E9 #E98A5B #BAE95B

monochromatic

#1832B2 #2545E2 #5B73E9 #91A1F0 #C7CFF7

Accessibility & contrast

On white

4.14

#5B73E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#5B73E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B73E9

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B73E9	#FFFFFF	#000000	##000000
##5B73E9	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3083ED

Deuteranopia (green-blind)

#0177E7

Tritanopia (blue-blind)

#008EA3

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #5b73e9;
/* rgb */ color: rgb(91, 115, 233);
/* oklch */ color: oklch(59.8% 0.179 271.4);

Tailwind

colors: {
  custom: {
    50: '#969bf1',
    500: '#5b73e9',
    950: '#000000',
  },
}

SCSS

$custom: #5b73e9;
$custom-light: #969bf1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b73e9",
  "rgb": {
    "r": 91,
    "g": 115,
    "b": 233
  },
  "hsl": {
    "h": 229.859,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.59846,
    "c": 0.17928,
    "h": 271.4
  },
  "luminance": 0.20369
}

Semantic roles & 50–950 ramp

primary

#5B73E9

secondary

#E9E1B7

accent

#B60DD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #5B73E9

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

Preview Lab → · Contrast checker → · Palette generator →