#243A85#243A85

#243A85 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.129 H 267.5°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#243A85
RGB	rgb(36, 58, 133)
HSL	hsl(226, 57%, 33%)
HSV	hsv(226, 73%, 52%)
CMYK	cmyk(72.9%, 56.4%, 0%, 47.8%)
CIE-LAB	lab(27.00, 18.84, -44.67)
CIE-LCH	lch(27.00, 48.48, 292.86°)
OKLab	oklab(37.77% -0.0056 -0.1286)
OKLCH	oklch(37.77% 0.129 267.5)
XYZ	xyz(6.4728, 5.0940, 22.8279)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A85 #856F24

analogous

#246A85 #243A85 #3F2485

triadic

#243A85 #85243A #3A8524

tetradic

#243A85 #85246A #856F24 #24853F

square

#243A85 #85246A #856F24 #24853F

split-complementary

#243A85 #853F24 #6A8524

monochromatic

#0A1025 #172555 #243A85 #314FB5 #536FD0

Accessibility & contrast

On white

10.40

#243A85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#243A85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A85

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A85	#FFFFFF	#000000	##FFFFFF
##243A85	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004488

Deuteranopia (green-blind)

#003C84

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243a85;
/* rgb */ color: rgb(36, 58, 133);
/* oklch */ color: oklch(37.8% 0.129 267.5);

Tailwind

colors: {
  custom: {
    50: '#6c6fa9',
    500: '#243a85',
    950: '#000000',
  },
}

SCSS

$custom: #243a85;
$custom-light: #6c6fa9;
$custom-dark: #000000;

JSON

{
  "hex": "#243a85",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 133
  },
  "hsl": {
    "h": 226.392,
    "s": 57.396,
    "l": 33.137
  },
  "oklch": {
    "l": 0.37768,
    "c": 0.12873,
    "h": 267.5
  },
  "luminance": 0.05095
}

Semantic roles & 50–950 ramp

primary

#243A85

secondary

#B49E50

accent

#BE47E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243A85

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

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