#243E83#243E83

#243E83 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.5% C 0.120 H 265.5°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#243E83
RGB	rgb(36, 62, 131)
HSL	hsl(224, 57%, 33%)
HSV	hsv(224, 73%, 51%)
CMYK	cmyk(72.5%, 52.7%, 0%, 48.6%)
CIE-LAB	lab(28.00, 15.28, -41.81)
CIE-LCH	lch(28.00, 44.51, 290.08°)
OKLab	oklab(38.48% -0.0094 -0.1201)
OKLCH	oklch(38.48% 0.12 265.5)
XYZ	xyz(6.5455, 5.4583, 22.1769)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E83 #836924

analogous

#246D83 #243E83 #3A2483

triadic

#243E83 #83243E #3E8324

tetradic

#243E83 #83246D #836924 #24833A

square

#243E83 #83246D #836924 #24833A

split-complementary

#243E83 #833A24 #6D8324

monochromatic

#0A1123 #172753 #243E83 #3155B3 #5274CF

Accessibility & contrast

On white

10.04

#243E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#243E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E83

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E83	#FFFFFF	#000000	##FFFFFF
##243E83	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144785

Deuteranopia (green-blind)

#003E82

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #243e83;
/* rgb */ color: rgb(36, 62, 131);
/* oklch */ color: oklch(38.5% 0.120 265.5);

Tailwind

colors: {
  custom: {
    50: '#6c72a8',
    500: '#243e83',
    950: '#000000',
  },
}

SCSS

$custom: #243e83;
$custom-light: #6c72a8;
$custom-dark: #000000;

JSON

{
  "hex": "#243e83",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 131
  },
  "hsl": {
    "h": 223.579,
    "s": 56.886,
    "l": 32.745
  },
  "oklch": {
    "l": 0.38478,
    "c": 0.12048,
    "h": 265.5
  },
  "luminance": 0.05459
}

Semantic roles & 50–950 ramp

primary

#243E83

secondary

#B3984F

accent

#B648E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #243E83

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

Preview Lab → · Contrast checker → · Palette generator →