#243E78#243E78

#243E78 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.6% C 0.104 H 263.9°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#243E78
RGB	rgb(36, 62, 120)
HSL	hsl(221, 54%, 31%)
HSV	hsv(221, 70%, 47%)
CMYK	cmyk(70%, 48.3%, 0%, 52.9%)
CIE-LAB	lab(27.23, 10.96, -36.15)
CIE-LCH	lch(27.23, 37.78, 286.86°)
OKLab	oklab(37.64% -0.011 -0.1035)
OKLCH	oklch(37.64% 0.104 263.9)
XYZ	xyz(5.8392, 5.1758, 18.4570)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E78 #785E24

analogous

#246878 #243E78 #342478

triadic

#243E78 #78243E #3E7824

tetradic

#243E78 #782468 #785E24 #247834

square

#243E78 #782468 #785E24 #247834

split-complementary

#243E78 #783424 #687824

monochromatic

#080D1A #162649 #243E78 #3256A7 #4D73CA

Accessibility & contrast

On white

10.32

#243E78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#243E78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E78

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E78	#FFFFFF	#000000	##FFFFFF
##243E78	1.00	10.32	2.04	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21447A

Deuteranopia (green-blind)

#103D77

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243e78;
/* rgb */ color: rgb(36, 62, 120);
/* oklch */ color: oklch(37.6% 0.104 263.9);

Tailwind

colors: {
  custom: {
    50: '#69729f',
    500: '#243e78',
    950: '#000000',
  },
}

SCSS

$custom: #243e78;
$custom-light: #69729f;
$custom-dark: #000000;

JSON

{
  "hex": "#243e78",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 120
  },
  "hsl": {
    "h": 221.429,
    "s": 53.846,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37641,
    "c": 0.10405,
    "h": 263.9
  },
  "luminance": 0.05176
}

Semantic roles & 50–950 ramp

primary

#243E78

secondary

#AB8E4D

accent

#B04BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #243E78

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

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