#5B73DD#5B73DD

#5B73DD is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.0% C 0.163 H 271.1°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#5B73DD
RGB	rgb(91, 115, 221)
HSL	hsl(229, 66%, 61%)
HSV	hsv(229, 59%, 87%)
CMYK	cmyk(58.8%, 48%, 0%, 13.3%)
CIE-LAB	lab(51.50, 22.83, -57.02)
CIE-LCH	lch(51.50, 61.42, 291.82°)
OKLab	oklab(59.04% 0.003 -0.1629)
OKLCH	oklch(59.04% 0.163 271.1)
XYZ	xyz(23.4919, 19.7042, 70.9579)
Luminance	0.1971 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B73DD #DDC55B

analogous

#5BB4DD #5B73DD #845BDD

triadic

#5B73DD #DD5B73 #73DD5B

tetradic

#5B73DD #DD5BB4 #DDC55B #5BDD84

square

#5B73DD #DD5BB4 #DDC55B #5BDD84

split-complementary

#5B73DD #DD845B #B4DD5B

monochromatic

#21389D #2B49D0 #5B73DD #8E9EE8 #C0CAF2

Accessibility & contrast

On white

4.25

#5B73DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#5B73DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B73DD

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B73DD	#FFFFFF	#000000	##000000
##5B73DD	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E81E1

Deuteranopia (green-blind)

#2875DB

Tritanopia (blue-blind)

#008B9D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5b73dd;
/* rgb */ color: rgb(91, 115, 221);
/* oklch */ color: oklch(59.0% 0.163 271.1);

Tailwind

colors: {
  custom: {
    50: '#949ae8',
    500: '#5b73dd',
    950: '#000000',
  },
}

SCSS

$custom: #5b73dd;
$custom-light: #949ae8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b73dd",
  "rgb": {
    "r": 91,
    "g": 115,
    "b": 221
  },
  "hsl": {
    "h": 228.923,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.5904,
    "c": 0.16296,
    "h": 271.1
  },
  "luminance": 0.19706
}

Semantic roles & 50–950 ramp

primary

#5B73DD

secondary

#E2D9B1

accent

#AC18CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5B73DD

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

Preview Lab → · Contrast checker → · Palette generator →