#243783#243783

#243783 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.130 H 268.6°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#243783
RGB	rgb(36, 55, 131)
HSL	hsl(228, 57%, 33%)
HSV	hsv(228, 73%, 51%)
CMYK	cmyk(72.5%, 58%, 0%, 48.6%)
CIE-LAB	lab(26.00, 20.13, -45.05)
CIE-LCH	lch(26.00, 49.35, 294.08°)
OKLab	oklab(36.96% -0.0031 -0.1298)
OKLCH	oklch(36.96% 0.13 268.6)
XYZ	xyz(6.1891, 4.7455, 22.0581)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243783 #837024

analogous

#246683 #243783 #402483

triadic

#243783 #832437 #378324

tetradic

#243783 #832466 #837024 #248340

square

#243783 #832466 #837024 #248340

split-complementary

#243783 #834024 #668324

monochromatic

#0A0F23 #172353 #243783 #314BB3 #526BCF

Accessibility & contrast

On white

10.77

#243783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#243783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243783

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243783	#FFFFFF	#000000	##FFFFFF
##243783	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003981

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243783;
/* rgb */ color: rgb(36, 55, 131);
/* oklch */ color: oklch(37.0% 0.130 268.6);

Tailwind

colors: {
  custom: {
    50: '#6c6da8',
    500: '#243783',
    950: '#000000',
  },
}

SCSS

$custom: #243783;
$custom-light: #6c6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#243783",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 228,
    "s": 56.886,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36964,
    "c": 0.12981,
    "h": 268.6
  },
  "luminance": 0.04746
}

Semantic roles & 50–950 ramp

primary

#243783

secondary

#B39F4F

accent

#C248E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243783

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

Preview Lab → · Contrast checker → · Palette generator →