#231579#231579

#231579 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.157 H 277.6°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#231579
RGB	rgb(35, 21, 121)
HSL	hsl(248, 70%, 28%)
HSV	hsv(248, 83%, 47%)
CMYK	cmyk(71.1%, 82.6%, 0%, 52.5%)
CIE-LAB	lab(16.86, 38.04, -53.70)
CIE-LCH	lch(16.86, 65.80, 305.31°)
OKLab	oklab(30.02% 0.0207 -0.1551)
OKLCH	oklch(30.02% 0.157 277.6)
XYZ	xyz(4.4114, 2.2737, 18.2919)
Luminance	0.0227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231579 #6B7915

analogous

#153979 #231579 #551579

triadic

#231579 #792315 #157923

tetradic

#231579 #791539 #6B7915 #157955

square

#231579 #791539 #6B7915 #157955

split-complementary

#231579 #795515 #397915

monochromatic

#08051A #140C45 #231579 #321EAD #462EDB

Accessibility & contrast

On white

14.43

#231579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#231579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231579

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231579	#FFFFFF	#000000	##FFFFFF
##231579	1.00	14.43	1.45	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7C

Deuteranopia (green-blind)

#002577

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231579;
/* rgb */ color: rgb(35, 21, 121);
/* oklch */ color: oklch(30.0% 0.157 277.6);

Tailwind

colors: {
  custom: {
    50: '#6c56a1',
    500: '#231579',
    950: '#000000',
  },
}

SCSS

$custom: #231579;
$custom-light: #6c56a1;
$custom-dark: #000000;

JSON

{
  "hex": "#231579",
  "rgb": {
    "r": 35,
    "g": 21,
    "b": 121
  },
  "hsl": {
    "h": 248.4,
    "s": 70.423,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30022,
    "c": 0.15652,
    "h": 277.6
  },
  "luminance": 0.02274
}

Semantic roles & 50–950 ramp

primary

#231579

secondary

#9EAF3B

accent

#ED3BD4

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231579

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

Preview Lab → · Contrast checker → · Palette generator →