#243588#243588

#243588 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.140 H 269.5°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#243588
RGB	rgb(36, 53, 136)
HSL	hsl(230, 58%, 34%)
HSV	hsv(230, 74%, 53%)
CMYK	cmyk(73.5%, 61%, 0%, 46.7%)
CIE-LAB	lab(25.86, 23.45, -48.40)
CIE-LCH	lch(25.86, 53.78, 295.85°)
OKLab	oklab(36.99% -0.0013 -0.1396)
OKLCH	oklch(36.99% 0.14 269.5)
XYZ	xyz(6.4431, 4.6982, 23.8551)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243588 #887724

analogous

#246788 #243588 #452488

triadic

#243588 #882435 #358824

tetradic

#243588 #882467 #887724 #248845

square

#243588 #882467 #887724 #248845

split-complementary

#243588 #884524 #678824

monochromatic

#0A0F27 #172258 #243588 #3148B8 #556AD2

Accessibility & contrast

On white

10.83

#243588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#243588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243588

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243588	#FFFFFF	#000000	##FFFFFF
##243588	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)

#00428B

Deuteranopia (green-blind)

#003986

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243588;
/* rgb */ color: rgb(36, 53, 136);
/* oklch */ color: oklch(37.0% 0.140 269.5);

Tailwind

colors: {
  custom: {
    50: '#6d6cab',
    500: '#243588',
    950: '#000000',
  },
}

SCSS

$custom: #243588;
$custom-light: #6d6cab;
$custom-dark: #000000;

JSON

{
  "hex": "#243588",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 136
  },
  "hsl": {
    "h": 229.8,
    "s": 58.14,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36988,
    "c": 0.13965,
    "h": 269.5
  },
  "luminance": 0.04699
}

Semantic roles & 50–950 ramp

primary

#243588

secondary

#B6A552

accent

#C746E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #243588

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

Preview Lab → · Contrast checker → · Palette generator →