#231DAA#231DAA

#231DAA is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.8% C 0.209 H 271.3°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#231DAA
RGB	rgb(35, 29, 170)
HSL	hsl(243, 71%, 39%)
HSV	hsv(243, 83%, 67%)
CMYK	cmyk(79.4%, 82.9%, 0%, 33.3%)
CIE-LAB	lab(24.12, 49.66, -72.10)
CIE-LCH	lch(24.12, 87.55, 304.55°)
OKLab	oklab(36.77% 0.0048 -0.2087)
OKLCH	oklch(36.77% 0.209 271.3)
XYZ	xyz(8.3858, 4.1374, 38.3791)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231DAA #A4AA1D

analogous

#1D5EAA #231DAA #6A1DAA

triadic

#231DAA #AA231D #1DAA23

tetradic

#231DAA #AA1D5E #A4AA1D #1DAA6A

square

#231DAA #AA1D5E #A4AA1D #1DAA6A

split-complementary

#231DAA #AA6A1D #5EAA1D

monochromatic

#0D0B41 #181476 #231DAA #312ADB #645EE4

Accessibility & contrast

On white

11.49

#231DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#231DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231DAA

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231DAA	#FFFFFF	#000000	##FFFFFF
##231DAA	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AE

Deuteranopia (green-blind)

#0032A8

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #231daa;
/* rgb */ color: rgb(35, 29, 170);
/* oklch */ color: oklch(36.8% 0.209 271.3);

Tailwind

colors: {
  custom: {
    50: '#785ec5',
    500: '#231daa',
    950: '#000000',
  },
}

SCSS

$custom: #231daa;
$custom-light: #785ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#231daa",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 170
  },
  "hsl": {
    "h": 242.553,
    "s": 70.854,
    "l": 39.02
  },
  "oklch": {
    "l": 0.3677,
    "c": 0.20873,
    "h": 271.3
  },
  "luminance": 0.04138
}

Semantic roles & 50–950 ramp

primary

#231DAA

secondary

#C3C85B

accent

#EE3AE6

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #231DAA

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

Preview Lab → · Contrast checker → · Palette generator →