#243D72#243D72

#243D72 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.096 H 263.4°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#243D72
RGB	rgb(36, 61, 114)
HSL	hsl(221, 52%, 29%)
HSV	hsv(221, 68%, 45%)
CMYK	cmyk(68.4%, 46.5%, 0%, 55.3%)
CIE-LAB	lab(26.53, 9.30, -33.48)
CIE-LCH	lch(26.53, 34.75, 285.52°)
OKLab	oklab(36.97% -0.011 -0.0956)
OKLCH	oklch(36.97% 0.096 263.4)
XYZ	xyz(5.4325, 4.9269, 16.5810)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D72 #725924

analogous

#246472 #243D72 #322472

triadic

#243D72 #72243D #3D7224

tetradic

#243D72 #722464 #725924 #247232

square

#243D72 #722464 #725924 #247232

split-complementary

#243D72 #723224 #647224

monochromatic

#070C17 #152443 #243D72 #3356A1 #4A72C6

Accessibility & contrast

On white

10.58

#243D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#243D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D72

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D72	#FFFFFF	#000000	##FFFFFF
##243D72	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244374

Deuteranopia (green-blind)

#163B71

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243d72;
/* rgb */ color: rgb(36, 61, 114);
/* oklch */ color: oklch(37.0% 0.096 263.4);

Tailwind

colors: {
  custom: {
    50: '#68729b',
    500: '#243d72',
    950: '#000000',
  },
}

SCSS

$custom: #243d72;
$custom-light: #68729b;
$custom-dark: #000000;

JSON

{
  "hex": "#243d72",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 114
  },
  "hsl": {
    "h": 220.769,
    "s": 52,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36971,
    "c": 0.09627,
    "h": 263.4
  },
  "luminance": 0.04927
}

Semantic roles & 50–950 ramp

primary

#243D72

secondary

#A5894D

accent

#AE4CDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243D72

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

Preview Lab → · Contrast checker → · Palette generator →