#231573#231573

#231573 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.3% C 0.149 H 278.7°. Best body text is #FFFFFF at 14.72:1 contrast (WCAG AA passes).

Color values

HEX	#231573
RGB	rgb(35, 21, 115)
HSL	hsl(249, 69%, 27%)
HSV	hsv(249, 82%, 45%)
CMYK	cmyk(69.6%, 81.7%, 0%, 54.9%)
CIE-LAB	lab(16.16, 36.08, -50.99)
CIE-LCH	lch(16.16, 62.47, 305.28°)
OKLab	oklab(29.33% 0.0225 -0.1473)
OKLCH	oklch(29.33% 0.149 278.7)
XYZ	xyz(4.0548, 2.1311, 16.4140)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231573 #657315

analogous

#153673 #231573 #521573

triadic

#231573 #732315 #157323

tetradic

#231573 #731536 #657315 #157352

square

#231573 #731536 #657315 #157352

split-complementary

#231573 #735215 #367315

monochromatic

#08051A #130C3F #231573 #331EA7 #442AD8

Accessibility & contrast

On white

14.72

#231573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#231573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231573

14.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231573	#FFFFFF	#000000	##FFFFFF
##231573	1.00	14.72	1.43	14.72
#FFFFFF	14.72	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C76

Deuteranopia (green-blind)

#002471

Tritanopia (blue-blind)

#003144

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #231573;
/* rgb */ color: rgb(35, 21, 115);
/* oklch */ color: oklch(29.3% 0.149 278.7);

Tailwind

colors: {
  custom: {
    50: '#6b559c',
    500: '#231573',
    950: '#000000',
  },
}

SCSS

$custom: #231573;
$custom-light: #6b559c;
$custom-dark: #000000;

JSON

{
  "hex": "#231573",
  "rgb": {
    "r": 35,
    "g": 21,
    "b": 115
  },
  "hsl": {
    "h": 248.936,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29326,
    "c": 0.14899,
    "h": 278.7
  },
  "luminance": 0.02131
}

Semantic roles & 50–950 ramp

primary

#231573

secondary

#99A93B

accent

#EC3CD2

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #231573

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

Preview Lab → · Contrast checker → · Palette generator →