#243389#243389

#243389 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.7% C 0.144 H 270.1°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#243389
RGB	rgb(36, 51, 137)
HSL	hsl(231, 58%, 34%)
HSV	hsv(231, 74%, 54%)
CMYK	cmyk(73.7%, 62.8%, 0%, 46.3%)
CIE-LAB	lab(25.41, 25.20, -49.76)
CIE-LCH	lch(25.41, 55.78, 296.86°)
OKLab	oklab(36.68% 0.0002 -0.1436)
OKLCH	oklch(36.68% 0.144 270.1)
XYZ	xyz(6.4252, 4.5482, 24.2013)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243389 #897A24

analogous

#246689 #243389 #482489

triadic

#243389 #892433 #338924

tetradic

#243389 #892466 #897A24 #248948

square

#243389 #892466 #897A24 #248948

split-complementary

#243389 #894824 #668924

monochromatic

#0B0F28 #172159 #243389 #3145B9 #5568D2

Accessibility & contrast

On white

11.00

#243389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#243389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243389

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243389	#FFFFFF	#000000	##FFFFFF
##243389	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418C

Deuteranopia (green-blind)

#003887

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243389;
/* rgb */ color: rgb(36, 51, 137);
/* oklch */ color: oklch(36.7% 0.144 270.1);

Tailwind

colors: {
  custom: {
    50: '#6e6aac',
    500: '#243389',
    950: '#000000',
  },
}

SCSS

$custom: #243389;
$custom-light: #6e6aac;
$custom-dark: #000000;

JSON

{
  "hex": "#243389",
  "rgb": {
    "r": 36,
    "g": 51,
    "b": 137
  },
  "hsl": {
    "h": 231.089,
    "s": 58.382,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36681,
    "c": 0.14365,
    "h": 270.1
  },
  "luminance": 0.04549
}

Semantic roles & 50–950 ramp

primary

#243389

secondary

#B7A852

accent

#CB46E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #243389

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

Preview Lab → · Contrast checker → · Palette generator →