#231DA6#231DA6

#231DA6 is a dark, highly saturated blue. Relative luminance 0.040; OKLCH L 36.3% C 0.204 H 271.6°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#231DA6
RGB	rgb(35, 29, 166)
HSL	hsl(243, 70%, 38%)
HSV	hsv(243, 83%, 65%)
CMYK	cmyk(78.9%, 82.5%, 0%, 34.9%)
CIE-LAB	lab(23.63, 48.41, -70.50)
CIE-LCH	lch(23.63, 85.52, 304.48°)
OKLab	oklab(36.29% 0.0058 -0.204)
OKLCH	oklch(36.29% 0.204 271.6)
XYZ	xyz(8.0131, 3.9883, 36.4165)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231DA6 #A0A61D

analogous

#1D5BA6 #231DA6 #671DA6

triadic

#231DA6 #A6231D #1DA623

tetradic

#231DA6 #A61D5B #A0A61D #1DA667

square

#231DA6 #A61D5B #A0A61D #1DA667

split-complementary

#231DA6 #A6671D #5BA61D

monochromatic

#0D0B3E #181472 #231DA6 #2F27D9 #615BE2

Accessibility & contrast

On white

11.68

#231DA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#231DA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231DA6

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231DA6	#FFFFFF	#000000	##FFFFFF
##231DA6	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAA

Deuteranopia (green-blind)

#0031A4

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #231da6;
/* rgb */ color: rgb(35, 29, 166);
/* oklch */ color: oklch(36.3% 0.204 271.6);

Tailwind

colors: {
  custom: {
    50: '#775dc2',
    500: '#231da6',
    950: '#000000',
  },
}

SCSS

$custom: #231da6;
$custom-light: #775dc2;
$custom-dark: #000000;

JSON

{
  "hex": "#231da6",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 166
  },
  "hsl": {
    "h": 242.628,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36292,
    "c": 0.20409,
    "h": 271.6
  },
  "luminance": 0.03989
}

Semantic roles & 50–950 ramp

primary

#231DA6

secondary

#C1C659

accent

#ED3BE5

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #231DA6

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

Preview Lab → · Contrast checker → · Palette generator →