#243D7A#243D7A

#243D7A is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.6% C 0.108 H 264.9°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#243D7A
RGB	rgb(36, 61, 122)
HSL	hsl(223, 54%, 31%)
HSV	hsv(223, 70%, 48%)
CMYK	cmyk(70.5%, 50%, 0%, 52.2%)
CIE-LAB	lab(27.07, 12.43, -37.68)
CIE-LCH	lch(27.07, 39.68, 288.26°)
OKLab	oklab(37.56% -0.0097 -0.108)
OKLCH	oklch(37.56% 0.108 264.9)
XYZ	xyz(5.9079, 5.1171, 19.0849)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D7A #7A6124

analogous

#24687A #243D7A #36247A

triadic

#243D7A #7A243D #3D7A24

tetradic

#243D7A #7A2468 #7A6124 #247A36

square

#243D7A #7A2468 #7A6124 #247A36

split-complementary

#243D7A #7A3624 #687A24

monochromatic

#080E1B #16254B #243D7A #3255A9 #4E72CB

Accessibility & contrast

On white

10.38

#243D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#243D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D7A

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D7A	#FFFFFF	#000000	##FFFFFF
##243D7A	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C447C

Deuteranopia (green-blind)

#073C79

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243d7a;
/* rgb */ color: rgb(36, 61, 122);
/* oklch */ color: oklch(37.6% 0.108 264.9);

Tailwind

colors: {
  custom: {
    50: '#6a72a1',
    500: '#243d7a',
    950: '#000000',
  },
}

SCSS

$custom: #243d7a;
$custom-light: #6a72a1;
$custom-dark: #000000;

JSON

{
  "hex": "#243d7a",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 122
  },
  "hsl": {
    "h": 222.558,
    "s": 54.43,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37559,
    "c": 0.1084,
    "h": 264.9
  },
  "luminance": 0.05118
}

Semantic roles & 50–950 ramp

primary

#243D7A

secondary

#AC914D

accent

#B34ADE

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #243D7A

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

Preview Lab → · Contrast checker → · Palette generator →