#231580#231580

#231580 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.165 H 276.5°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#231580
RGB	rgb(35, 21, 128)
HSL	hsl(248, 72%, 29%)
HSV	hsv(248, 84%, 50%)
CMYK	cmyk(72.7%, 83.6%, 0%, 49.8%)
CIE-LAB	lab(17.70, 40.28, -56.78)
CIE-LCH	lch(17.70, 69.62, 305.35°)
OKLab	oklab(30.85% 0.0186 -0.1641)
OKLCH	oklch(30.85% 0.165 276.5)
XYZ	xyz(4.8563, 2.4517, 20.6352)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231580 #728015

analogous

#153D80 #231580 #591580

triadic

#231580 #802315 #158023

tetradic

#231580 #80153D #728015 #158059

square

#231580 #80153D #728015 #158059

split-complementary

#231580 #805915 #3D8015

monochromatic

#07041A #150C4B #231580 #311EB5 #4832DD

Accessibility & contrast

On white

14.09

#231580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#231580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231580

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231580	#FFFFFF	#000000	##FFFFFF
##231580	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003083

Deuteranopia (green-blind)

#00277E

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231580;
/* rgb */ color: rgb(35, 21, 128);
/* oklch */ color: oklch(30.8% 0.165 276.5);

Tailwind

colors: {
  custom: {
    50: '#6e56a6',
    500: '#231580',
    950: '#000000',
  },
}

SCSS

$custom: #231580;
$custom-light: #6e56a6;
$custom-dark: #000000;

JSON

{
  "hex": "#231580",
  "rgb": {
    "r": 35,
    "g": 21,
    "b": 128
  },
  "hsl": {
    "h": 247.85,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30847,
    "c": 0.16515,
    "h": 276.5
  },
  "luminance": 0.02452
}

Semantic roles & 50–950 ramp

primary

#231580

secondary

#A5B53C

accent

#EF39D7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231580

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

Preview Lab → · Contrast checker → · Palette generator →