#243589#243589

#243589 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.141 H 269.5°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#243589
RGB	rgb(36, 53, 137)
HSL	hsl(230, 58%, 34%)
HSV	hsv(230, 74%, 54%)
CMYK	cmyk(73.7%, 61.3%, 0%, 46.3%)
CIE-LAB	lab(25.94, 23.84, -48.89)
CIE-LCH	lch(25.94, 54.39, 296.00°)
OKLab	oklab(37.08% -0.0013 -0.1411)
OKLCH	oklch(37.08% 0.141 269.5)
XYZ	xyz(6.5145, 4.7267, 24.2311)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243589 #897824

analogous

#246889 #243589 #462489

triadic

#243589 #892435 #358924

tetradic

#243589 #892468 #897824 #248946

square

#243589 #892468 #897824 #248946

split-complementary

#243589 #894624 #688924

monochromatic

#0B1028 #172259 #243589 #3148B9 #556AD2

Accessibility & contrast

On white

10.79

#243589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#243589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243589

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243589	#FFFFFF	#000000	##FFFFFF
##243589	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428C

Deuteranopia (green-blind)

#003987

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243589;
/* rgb */ color: rgb(36, 53, 137);
/* oklch */ color: oklch(37.1% 0.141 269.5);

Tailwind

colors: {
  custom: {
    50: '#6e6cac',
    500: '#243589',
    950: '#000000',
  },
}

SCSS

$custom: #243589;
$custom-light: #6e6cac;
$custom-dark: #000000;

JSON

{
  "hex": "#243589",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 137
  },
  "hsl": {
    "h": 229.901,
    "s": 58.382,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37077,
    "c": 0.14107,
    "h": 269.5
  },
  "luminance": 0.04727
}

Semantic roles & 50–950 ramp

primary

#243589

secondary

#B7A652

accent

#C746E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #243589

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

Preview Lab → · Contrast checker → · Palette generator →