#243784#243784

#243784 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.0% C 0.131 H 268.7°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#243784
RGB	rgb(36, 55, 132)
HSL	hsl(228, 57%, 33%)
HSV	hsv(228, 73%, 52%)
CMYK	cmyk(72.7%, 58.3%, 0%, 48.2%)
CIE-LAB	lab(26.08, 20.52, -45.55)
CIE-LCH	lch(26.08, 49.96, 294.25°)
OKLab	oklab(37.05% -0.0031 -0.1312)
OKLCH	oklch(37.05% 0.131 268.7)
XYZ	xyz(6.2572, 4.7728, 22.4168)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243784 #847124

analogous

#246784 #243784 #412484

triadic

#243784 #842437 #378424

tetradic

#243784 #842467 #847124 #248441

square

#243784 #842467 #847124 #248441

split-complementary

#243784 #844124 #678424

monochromatic

#0A0F24 #172354 #243784 #314BB4 #526BD0

Accessibility & contrast

On white

10.74

#243784 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#243784 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243784

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243784	#FFFFFF	#000000	##FFFFFF
##243784	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004287

Deuteranopia (green-blind)

#003982

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243784;
/* rgb */ color: rgb(36, 55, 132);
/* oklch */ color: oklch(37.0% 0.131 268.7);

Tailwind

colors: {
  custom: {
    50: '#6c6da8',
    500: '#243784',
    950: '#000000',
  },
}

SCSS

$custom: #243784;
$custom-light: #6c6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#243784",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 132
  },
  "hsl": {
    "h": 228.125,
    "s": 57.143,
    "l": 32.941
  },
  "oklch": {
    "l": 0.37049,
    "c": 0.13127,
    "h": 268.7
  },
  "luminance": 0.04773
}

Semantic roles & 50–950 ramp

primary

#243784

secondary

#B4A050

accent

#C247E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243784

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

Preview Lab → · Contrast checker → · Palette generator →