#243E75#243E75

#243E75 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.100 H 263.3°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#243E75
RGB	rgb(36, 62, 117)
HSL	hsl(221, 53%, 30%)
HSV	hsv(221, 69%, 46%)
CMYK	cmyk(69.2%, 47%, 0%, 54.1%)
CIE-LAB	lab(27.03, 9.78, -34.58)
CIE-LCH	lch(27.03, 35.94, 285.79°)
OKLab	oklab(37.42% -0.0115 -0.0988)
OKLCH	oklch(37.42% 0.1 263.3)
XYZ	xyz(5.6599, 5.1041, 17.5131)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E75 #755B24

analogous

#246675 #243E75 #332475

triadic

#243E75 #75243E #3E7524

tetradic

#243E75 #752466 #755B24 #247533

square

#243E75 #752466 #755B24 #247533

split-complementary

#243E75 #753324 #667524

monochromatic

#070C17 #162546 #243E75 #3257A4 #4C73C8

Accessibility & contrast

On white

10.39

#243E75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#243E75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E75

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E75	#FFFFFF	#000000	##FFFFFF
##243E75	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234477

Deuteranopia (green-blind)

#153C74

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243e75;
/* rgb */ color: rgb(36, 62, 117);
/* oklch */ color: oklch(37.4% 0.100 263.3);

Tailwind

colors: {
  custom: {
    50: '#69729d',
    500: '#243e75',
    950: '#000000',
  },
}

SCSS

$custom: #243e75;
$custom-light: #69729d;
$custom-dark: #000000;

JSON

{
  "hex": "#243e75",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 117
  },
  "hsl": {
    "h": 220.741,
    "s": 52.941,
    "l": 30
  },
  "oklch": {
    "l": 0.37422,
    "c": 0.09951,
    "h": 263.3
  },
  "luminance": 0.05105
}

Semantic roles & 50–950 ramp

primary

#243E75

secondary

#A88B4D

accent

#AE4BDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #243E75

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

Preview Lab → · Contrast checker → · Palette generator →