#243C72#243C72

#243C72 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.098 H 264.2°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#243C72
RGB	rgb(36, 60, 114)
HSL	hsl(222, 52%, 29%)
HSV	hsv(222, 68%, 45%)
CMYK	cmyk(68.4%, 47.4%, 0%, 55.3%)
CIE-LAB	lab(26.22, 9.99, -33.97)
CIE-LCH	lch(26.22, 35.41, 286.39°)
OKLab	oklab(36.74% -0.0099 -0.0971)
OKLCH	oklch(36.74% 0.098 264.2)
XYZ	xyz(5.3796, 4.8212, 16.5634)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C72 #725A24

analogous

#246372 #243C72 #332472

triadic

#243C72 #72243C #3C7224

tetradic

#243C72 #722463 #725A24 #247233

square

#243C72 #722463 #725A24 #247233

split-complementary

#243C72 #723324 #637224

monochromatic

#070C17 #152443 #243C72 #3354A1 #4A70C6

Accessibility & contrast

On white

10.69

#243C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#243C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C72

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C72	#FFFFFF	#000000	##FFFFFF
##243C72	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224274

Deuteranopia (green-blind)

#143B71

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243c72;
/* rgb */ color: rgb(36, 60, 114);
/* oklch */ color: oklch(36.7% 0.098 264.2);

Tailwind

colors: {
  custom: {
    50: '#68719b',
    500: '#243c72',
    950: '#000000',
  },
}

SCSS

$custom: #243c72;
$custom-light: #68719b;
$custom-dark: #000000;

JSON

{
  "hex": "#243c72",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 114
  },
  "hsl": {
    "h": 221.538,
    "s": 52,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36736,
    "c": 0.09761,
    "h": 264.2
  },
  "luminance": 0.04822
}

Semantic roles & 50–950 ramp

primary

#243C72

secondary

#A58A4D

accent

#AF4CDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243C72

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

Preview Lab → · Contrast checker → · Palette generator →