#243D86#243D86

#243D86 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.126 H 266.3°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#243D86
RGB	rgb(36, 61, 134)
HSL	hsl(225, 58%, 33%)
HSV	hsv(225, 73%, 53%)
CMYK	cmyk(73.1%, 54.5%, 0%, 47.5%)
CIE-LAB	lab(27.93, 17.15, -43.78)
CIE-LCH	lch(27.93, 47.02, 291.39°)
OKLab	oklab(38.5% -0.0082 -0.1259)
OKLCH	oklch(38.5% 0.126 266.3)
XYZ	xyz(6.6979, 5.4331, 23.2453)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D86 #866D24

analogous

#246E86 #243D86 #3C2486

triadic

#243D86 #86243D #3D8624

tetradic

#243D86 #86246E #866D24 #24863C

square

#243D86 #86246E #866D24 #24863C

split-complementary

#243D86 #863C24 #6E8624

monochromatic

#0A1126 #172756 #243D86 #3153B6 #5373D1

Accessibility & contrast

On white

10.06

#243D86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#243D86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D86

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D86	#FFFFFF	#000000	##FFFFFF
##243D86	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A4789

Deuteranopia (green-blind)

#003E85

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #243d86;
/* rgb */ color: rgb(36, 61, 134);
/* oklch */ color: oklch(38.5% 0.126 266.3);

Tailwind

colors: {
  custom: {
    50: '#6c72aa',
    500: '#243d86',
    950: '#000000',
  },
}

SCSS

$custom: #243d86;
$custom-light: #6c72aa;
$custom-dark: #000000;

JSON

{
  "hex": "#243d86",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 134
  },
  "hsl": {
    "h": 224.694,
    "s": 57.647,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38497,
    "c": 0.12621,
    "h": 266.3
  },
  "luminance": 0.05434
}

Semantic roles & 50–950 ramp

primary

#243D86

secondary

#B59B51

accent

#BA47E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243D86

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

Preview Lab → · Contrast checker → · Palette generator →