#231A90#231A90

#231A90 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.3% C 0.180 H 273.9°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#231A90
RGB	rgb(35, 26, 144)
HSL	hsl(245, 69%, 33%)
HSV	hsv(245, 82%, 56%)
CMYK	cmyk(75.7%, 81.9%, 0%, 43.5%)
CIE-LAB	lab(20.48, 42.91, -62.23)
CIE-LCH	lch(20.48, 75.59, 304.59°)
OKLab	oklab(33.33% 0.0122 -0.18)
OKLCH	oklch(33.33% 0.18 273.9)
XYZ	xyz(6.0949, 3.1091, 26.6591)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A90 #87901A

analogous

#1A4C90 #231A90 #5E1A90

triadic

#231A90 #90231A #1A9023

tetradic

#231A90 #901A4C #87901A #1A905E

square

#231A90 #901A4C #87901A #1A905E

split-complementary

#231A90 #905E1A #4C901A

monochromatic

#0A0728 #16115C #231A90 #3023C4 #5247DE

Accessibility & contrast

On white

12.95

#231A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#231A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A90

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A90	#FFFFFF	#000000	##FFFFFF
##231A90	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003793

Deuteranopia (green-blind)

#002C8E

Tritanopia (blue-blind)

#003F56

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231a90;
/* rgb */ color: rgb(35, 26, 144);
/* oklch */ color: oklch(33.3% 0.180 273.9);

Tailwind

colors: {
  custom: {
    50: '#725ab2',
    500: '#231a90',
    950: '#000000',
  },
}

SCSS

$custom: #231a90;
$custom-light: #725ab2;
$custom-dark: #000000;

JSON

{
  "hex": "#231a90",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 144
  },
  "hsl": {
    "h": 244.576,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33333,
    "c": 0.18041,
    "h": 273.9
  },
  "luminance": 0.0311
}

Semantic roles & 50–950 ramp

primary

#231A90

secondary

#B6BF47

accent

#EC3CDF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231A90

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

Preview Lab → · Contrast checker → · Palette generator →