#231584#231584

#231584 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.170 H 275.9°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#231584
RGB	rgb(35, 21, 132)
HSL	hsl(248, 73%, 30%)
HSV	hsv(248, 84%, 52%)
CMYK	cmyk(73.5%, 84.1%, 0%, 48.2%)
CIE-LAB	lab(18.18, 41.55, -58.51)
CIE-LCH	lch(18.18, 71.76, 305.38°)
OKLab	oklab(31.32% 0.0174 -0.1691)
OKLCH	oklch(31.32% 0.17 275.9)
XYZ	xyz(5.1248, 2.5591, 22.0492)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231584 #768415

analogous

#153E84 #231584 #5B1584

triadic

#231584 #842315 #158423

tetradic

#231584 #84153E #768415 #15845B

square

#231584 #84153E #768415 #15845B

split-complementary

#231584 #845B15 #3E8415

monochromatic

#07041A #150D4F #231584 #311DB9 #4A35DF

Accessibility & contrast

On white

13.89

#231584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#231584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231584

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231584	#FFFFFF	#000000	##FFFFFF
##231584	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003187

Deuteranopia (green-blind)

#002782

Tritanopia (blue-blind)

#00384E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231584;
/* rgb */ color: rgb(35, 21, 132);
/* oklch */ color: oklch(31.3% 0.170 275.9);

Tailwind

colors: {
  custom: {
    50: '#6f56a9',
    500: '#231584',
    950: '#000000',
  },
}

SCSS

$custom: #231584;
$custom-light: #6f56a9;
$custom-dark: #000000;

JSON

{
  "hex": "#231584",
  "rgb": {
    "r": 35,
    "g": 21,
    "b": 132
  },
  "hsl": {
    "h": 247.568,
    "s": 72.549,
    "l": 30
  },
  "oklch": {
    "l": 0.31324,
    "c": 0.17002,
    "h": 275.9
  },
  "luminance": 0.0256
}

Semantic roles & 50–950 ramp

primary

#231584

secondary

#A9B93C

accent

#EF39D8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #231584

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

Preview Lab → · Contrast checker → · Palette generator →