#231578#231578

#231578 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.9% C 0.155 H 277.8°. Best body text is #FFFFFF at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#231578
RGB	rgb(35, 21, 120)
HSL	hsl(248, 70%, 28%)
HSV	hsv(248, 83%, 47%)
CMYK	cmyk(70.8%, 82.5%, 0%, 52.9%)
CIE-LAB	lab(16.74, 37.71, -53.25)
CIE-LCH	lch(16.74, 65.25, 305.31°)
OKLab	oklab(29.9% 0.021 -0.1538)
OKLCH	oklch(29.9% 0.155 277.8)
XYZ	xyz(4.3504, 2.2493, 17.9706)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231578 #6A7815

analogous

#153878 #231578 #551578

triadic

#231578 #782315 #157823

tetradic

#231578 #781538 #6A7815 #157855

square

#231578 #781538 #6A7815 #157855

split-complementary

#231578 #785515 #387815

monochromatic

#08051A #140C44 #231578 #321EAC #462DDA

Accessibility & contrast

On white

14.48

#231578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#231578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231578

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231578	#FFFFFF	#000000	##FFFFFF
##231578	1.00	14.48	1.45	14.48
#FFFFFF	14.48	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7B

Deuteranopia (green-blind)

#002576

Tritanopia (blue-blind)

#003347

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231578;
/* rgb */ color: rgb(35, 21, 120);
/* oklch */ color: oklch(29.9% 0.155 277.8);

Tailwind

colors: {
  custom: {
    50: '#6c56a0',
    500: '#231578',
    950: '#000000',
  },
}

SCSS

$custom: #231578;
$custom-light: #6c56a0;
$custom-dark: #000000;

JSON

{
  "hex": "#231578",
  "rgb": {
    "r": 35,
    "g": 21,
    "b": 120
  },
  "hsl": {
    "h": 248.485,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29905,
    "c": 0.15527,
    "h": 277.8
  },
  "luminance": 0.0225
}

Semantic roles & 50–950 ramp

primary

#231578

secondary

#9DAE3B

accent

#ED3BD4

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231578

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

Preview Lab → · Contrast checker → · Palette generator →