#5B73DB#5B73DB

#5B73DB is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.9% C 0.160 H 271.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#5B73DB
RGB	rgb(91, 115, 219)
HSL	hsl(229, 64%, 61%)
HSV	hsv(229, 58%, 86%)
CMYK	cmyk(58.4%, 47.5%, 0%, 14.1%)
CIE-LAB	lab(51.38, 22.17, -56.08)
CIE-LCH	lch(51.38, 60.30, 291.57°)
OKLab	oklab(58.91% 0.0028 -0.1602)
OKLCH	oklch(58.91% 0.16 271)
XYZ	xyz(23.2271, 19.5983, 69.5629)
Luminance	0.1960 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B73DB #DBC35B

analogous

#5BB3DB #5B73DB #835BDB

triadic

#5B73DB #DB5B73 #73DB5B

tetradic

#5B73DB #DB5BB3 #DBC35B #5BDB83

square

#5B73DB #DB5BB3 #DBC35B #5BDB83

split-complementary

#5B73DB #DB835B #B3DB5B

monochromatic

#22389A #2D4BCC #5B73DB #8D9EE6 #BFC9F1

Accessibility & contrast

On white

4.27

#5B73DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#5B73DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B73DB

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B73DB	#FFFFFF	#000000	##000000
##5B73DB	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4080DF

Deuteranopia (green-blind)

#2B75D9

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5b73db;
/* rgb */ color: rgb(91, 115, 219);
/* oklch */ color: oklch(58.9% 0.160 271.0);

Tailwind

colors: {
  custom: {
    50: '#949ae7',
    500: '#5b73db',
    950: '#000000',
  },
}

SCSS

$custom: #5b73db;
$custom-light: #949ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b73db",
  "rgb": {
    "r": 91,
    "g": 115,
    "b": 219
  },
  "hsl": {
    "h": 228.75,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.58909,
    "c": 0.1602,
    "h": 271
  },
  "luminance": 0.196
}

Semantic roles & 50–950 ramp

primary

#5B73DB

secondary

#E1D8B1

accent

#AA1ACC

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5B73DB

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

Preview Lab → · Contrast checker → · Palette generator →