#243584#243584

#243584 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.6% C 0.134 H 269.4°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#243584
RGB	rgb(36, 53, 132)
HSL	hsl(229, 57%, 33%)
HSV	hsv(229, 73%, 52%)
CMYK	cmyk(72.7%, 59.8%, 0%, 48.2%)
CIE-LAB	lab(25.52, 21.91, -46.45)
CIE-LCH	lch(25.52, 51.36, 295.25°)
OKLab	oklab(36.64% -0.0014 -0.1339)
OKLCH	oklch(36.64% 0.134 269.4)
XYZ	xyz(6.1641, 4.5866, 22.3858)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243584 #847324

analogous

#246584 #243584 #432484

triadic

#243584 #842435 #358424

tetradic

#243584 #842465 #847324 #248443

square

#243584 #842465 #847324 #248443

split-complementary

#243584 #844324 #658424

monochromatic

#0A0E24 #172254 #243584 #3148B4 #5269D0

Accessibility & contrast

On white

10.95

#243584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#243584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243584

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243584	#FFFFFF	#000000	##FFFFFF
##243584	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004187

Deuteranopia (green-blind)

#003882

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243584;
/* rgb */ color: rgb(36, 53, 132);
/* oklch */ color: oklch(36.6% 0.134 269.4);

Tailwind

colors: {
  custom: {
    50: '#6c6ca8',
    500: '#243584',
    950: '#000000',
  },
}

SCSS

$custom: #243584;
$custom-light: #6c6ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#243584",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 132
  },
  "hsl": {
    "h": 229.375,
    "s": 57.143,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36635,
    "c": 0.13392,
    "h": 269.4
  },
  "luminance": 0.04587
}

Semantic roles & 50–950 ramp

primary

#243584

secondary

#B4A250

accent

#C547E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #243584

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

Preview Lab → · Contrast checker → · Palette generator →