#584FDB#584FDB

#584FDB is a mid, highly saturated blue. Relative luminance 0.128; OKLCH L 52.2% C 0.206 H 279.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#584FDB
RGB	rgb(88, 79, 219)
HSL	hsl(244, 66%, 58%)
HSV	hsv(244, 64%, 86%)
CMYK	cmyk(59.8%, 63.9%, 0%, 14.1%)
CIE-LAB	lab(42.43, 43.56, -70.58)
CIE-LCH	lch(42.43, 82.94, 301.68°)
OKLab	oklab(52.19% 0.0336 -0.2032)
OKLCH	oklch(52.19% 0.206 279.4)
XYZ	xyz(19.6026, 12.7797, 68.4378)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#584FDB #D2DB4F

analogous

#4F8CDB #584FDB #9E4FDB

triadic

#584FDB #DB584F #4FDB58

tetradic

#584FDB #DB4F8C #D2DB4F #4FDB9E

square

#584FDB #DB4F8C #D2DB4F #4FDB9E

split-complementary

#584FDB #DB9E4F #8CDB4F

monochromatic

#251E92 #3228C5 #584FDB #8882E5 #B8B5F0

Accessibility & contrast

On white

5.91

#584FDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#584FDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #584FDB

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##584FDB	#FFFFFF	#000000	##FFFFFF
##584FDB	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADF

Deuteranopia (green-blind)

#005FD8

Tritanopia (blue-blind)

#00728E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #584fdb;
/* rgb */ color: rgb(88, 79, 219);
/* oklch */ color: oklch(52.2% 0.206 279.4);

Tailwind

colors: {
  custom: {
    50: '#9481e7',
    500: '#584fdb',
    950: '#000000',
  },
}

SCSS

$custom: #584fdb;
$custom-light: #9481e7;
$custom-dark: #000000;

JSON

{
  "hex": "#584fdb",
  "rgb": {
    "r": 88,
    "g": 79,
    "b": 219
  },
  "hsl": {
    "h": 243.857,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.52187,
    "c": 0.20594,
    "h": 279.4
  },
  "luminance": 0.12781
}

Semantic roles & 50–950 ramp

primary

#584FDB

secondary

#DBDFA7

accent

#E93FDE

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #584FDB

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

Preview Lab → · Contrast checker → · Palette generator →