#243781#243781

#243781 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.8% C 0.127 H 268.5°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#243781
RGB	rgb(36, 55, 129)
HSL	hsl(228, 56%, 32%)
HSV	hsv(228, 72%, 51%)
CMYK	cmyk(72.1%, 57.4%, 0%, 49.4%)
CIE-LAB	lab(25.84, 19.35, -44.06)
CIE-LCH	lch(25.84, 48.12, 293.71°)
OKLab	oklab(36.79% -0.0032 -0.1268)
OKLCH	oklch(36.79% 0.127 268.5)
XYZ	xyz(6.0548, 4.6918, 21.3511)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243781 #816E24

analogous

#246681 #243781 #402481

triadic

#243781 #812437 #378124

tetradic

#243781 #812466 #816E24 #248140

square

#243781 #812466 #816E24 #248140

split-complementary

#243781 #814024 #668124

monochromatic

#090E21 #172351 #243781 #314BB1 #516BCE

Accessibility & contrast

On white

10.83

#243781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#243781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243781

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243781	#FFFFFF	#000000	##FFFFFF
##243781	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004284

Deuteranopia (green-blind)

#003980

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243781;
/* rgb */ color: rgb(36, 55, 129);
/* oklch */ color: oklch(36.8% 0.127 268.5);

Tailwind

colors: {
  custom: {
    50: '#6c6da6',
    500: '#243781',
    950: '#000000',
  },
}

SCSS

$custom: #243781;
$custom-light: #6c6da6;
$custom-dark: #000000;

JSON

{
  "hex": "#243781",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 129
  },
  "hsl": {
    "h": 227.742,
    "s": 56.364,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36794,
    "c": 0.12689,
    "h": 268.5
  },
  "luminance": 0.04692
}

Semantic roles & 50–950 ramp

primary

#243781

secondary

#B29E4E

accent

#C148E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #243781

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

Preview Lab → · Contrast checker → · Palette generator →