#5B73CA#5B73CA

#5B73CA is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.8% C 0.136 H 270.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#5B73CA
RGB	rgb(91, 115, 202)
HSL	hsl(227, 51%, 57%)
HSV	hsv(227, 55%, 79%)
CMYK	cmyk(55%, 43.1%, 0%, 20.8%)
CIE-LAB	lab(50.39, 16.59, -48.00)
CIE-LCH	lch(50.39, 50.79, 289.07°)
OKLab	oklab(57.84% 0.0002 -0.1365)
OKLCH	oklch(57.84% 0.136 270.1)
XYZ	xyz(21.1023, 18.7483, 58.3725)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B73CA #CAB25B

analogous

#5BABCA #5B73CA #7B5BCA

triadic

#5B73CA #CA5B73 #73CA5B

tetradic

#5B73CA #CA5BAB #CAB25B #5BCA7B

square

#5B73CA #CA5BAB #CAB25B #5BCA7B

split-complementary

#5B73CA #CA7B5B #ABCA5B

monochromatic

#2A3D81 #3952AF #5B73CA #899AD9 #B8C2E8

Accessibility & contrast

On white

4.42

#5B73CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#5B73CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B73CA

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B73CA	#FFFFFF	#000000	##000000
##5B73CA	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7DCD

Deuteranopia (green-blind)

#4073C8

Tritanopia (blue-blind)

#1D8695

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5b73ca;
/* rgb */ color: rgb(91, 115, 202);
/* oklch */ color: oklch(57.8% 0.136 270.1);

Tailwind

colors: {
  custom: {
    50: '#919bda',
    500: '#5b73ca',
    950: '#000000',
  },
}

SCSS

$custom: #5b73ca;
$custom-light: #919bda;
$custom-dark: #000000;

JSON

{
  "hex": "#5b73ca",
  "rgb": {
    "r": 91,
    "g": 115,
    "b": 202
  },
  "hsl": {
    "h": 227.027,
    "s": 51.152,
    "l": 57.451
  },
  "oklch": {
    "l": 0.57835,
    "c": 0.13646,
    "h": 270.1
  },
  "luminance": 0.1875
}

Semantic roles & 50–950 ramp

primary

#5B73CA

secondary

#D7CDAA

accent

#BC4DDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5B73CA

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

Preview Lab → · Contrast checker → · Palette generator →