#243B72#243B72

#243B72 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.099 H 264.9°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#243B72
RGB	rgb(36, 59, 114)
HSL	hsl(222, 52%, 29%)
HSV	hsv(222, 68%, 45%)
CMYK	cmyk(68.4%, 48.2%, 0%, 55.3%)
CIE-LAB	lab(25.91, 10.69, -34.46)
CIE-LCH	lch(25.91, 36.08, 287.23°)
OKLab	oklab(36.5% -0.0089 -0.0985)
OKLCH	oklch(36.5% 0.099 264.9)
XYZ	xyz(5.3277, 4.7174, 16.5461)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B72 #725B24

analogous

#246272 #243B72 #342472

triadic

#243B72 #72243B #3B7224

tetradic

#243B72 #722462 #725B24 #247234

square

#243B72 #722462 #725B24 #247234

split-complementary

#243B72 #723424 #627224

monochromatic

#070C17 #152343 #243B72 #3353A1 #4A6FC6

Accessibility & contrast

On white

10.80

#243B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#243B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B72

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B72	#FFFFFF	#000000	##FFFFFF
##243B72	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204174

Deuteranopia (green-blind)

#113A71

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243b72;
/* rgb */ color: rgb(36, 59, 114);
/* oklch */ color: oklch(36.5% 0.099 264.9);

Tailwind

colors: {
  custom: {
    50: '#68709b',
    500: '#243b72',
    950: '#000000',
  },
}

SCSS

$custom: #243b72;
$custom-light: #68709b;
$custom-dark: #000000;

JSON

{
  "hex": "#243b72",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 114
  },
  "hsl": {
    "h": 222.308,
    "s": 52,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36502,
    "c": 0.09895,
    "h": 264.9
  },
  "luminance": 0.04718
}

Semantic roles & 50–950 ramp

primary

#243B72

secondary

#A58B4D

accent

#B14CDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243B72

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

Preview Lab → · Contrast checker → · Palette generator →