#243289#243289

#243289 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.145 H 270.4°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#243289
RGB	rgb(36, 50, 137)
HSL	hsl(232, 58%, 34%)
HSV	hsv(232, 74%, 54%)
CMYK	cmyk(73.7%, 63.5%, 0%, 46.3%)
CIE-LAB	lab(25.14, 25.88, -50.19)
CIE-LCH	lch(25.14, 56.47, 297.28°)
OKLab	oklab(36.49% 0.001 -0.1449)
OKLCH	oklch(36.49% 0.145 270.4)
XYZ	xyz(6.3820, 4.4618, 24.1869)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243289 #897B24

analogous

#246589 #243289 #492489

triadic

#243289 #892432 #328924

tetradic

#243289 #892465 #897B24 #248949

square

#243289 #892465 #897B24 #248949

split-complementary

#243289 #894924 #658924

monochromatic

#0B0F28 #172059 #243289 #3144B9 #5566D2

Accessibility & contrast

On white

11.10

#243289 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#243289 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243289

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243289	#FFFFFF	#000000	##FFFFFF
##243289	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408C

Deuteranopia (green-blind)

#003787

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243289;
/* rgb */ color: rgb(36, 50, 137);
/* oklch */ color: oklch(36.5% 0.145 270.4);

Tailwind

colors: {
  custom: {
    50: '#6e69ac',
    500: '#243289',
    950: '#000000',
  },
}

SCSS

$custom: #243289;
$custom-light: #6e69ac;
$custom-dark: #000000;

JSON

{
  "hex": "#243289",
  "rgb": {
    "r": 36,
    "g": 50,
    "b": 137
  },
  "hsl": {
    "h": 231.683,
    "s": 58.382,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36486,
    "c": 0.14492,
    "h": 270.4
  },
  "luminance": 0.04462
}

Semantic roles & 50–950 ramp

primary

#243289

secondary

#B7A952

accent

#CC46E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #243289

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

Preview Lab → · Contrast checker → · Palette generator →