#243D77#243D77

#243D77 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.104 H 264.4°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#243D77
RGB	rgb(36, 61, 119)
HSL	hsl(222, 54%, 30%)
HSV	hsv(222, 70%, 47%)
CMYK	cmyk(69.7%, 48.7%, 0%, 53.3%)
CIE-LAB	lab(26.86, 11.26, -36.12)
CIE-LCH	lch(26.86, 37.83, 287.31°)
OKLab	oklab(37.34% -0.0101 -0.1034)
OKLCH	oklch(37.34% 0.104 264.4)
XYZ	xyz(5.7249, 5.0439, 18.1211)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D77 #775E24

analogous

#246677 #243D77 #352477

triadic

#243D77 #77243D #3D7724

tetradic

#243D77 #772466 #775E24 #247735

square

#243D77 #772466 #775E24 #247735

split-complementary

#243D77 #773524 #667724

monochromatic

#080D19 #162548 #243D77 #3255A6 #4C72C9

Accessibility & contrast

On white

10.45

#243D77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#243D77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D77

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D77	#FFFFFF	#000000	##FFFFFF
##243D77	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4479

Deuteranopia (green-blind)

#0F3C76

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243d77;
/* rgb */ color: rgb(36, 61, 119);
/* oklch */ color: oklch(37.3% 0.104 264.4);

Tailwind

colors: {
  custom: {
    50: '#69729f',
    500: '#243d77',
    950: '#000000',
  },
}

SCSS

$custom: #243d77;
$custom-light: #69729f;
$custom-dark: #000000;

JSON

{
  "hex": "#243d77",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 119
  },
  "hsl": {
    "h": 221.928,
    "s": 53.548,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37335,
    "c": 0.10388,
    "h": 264.4
  },
  "luminance": 0.05044
}

Semantic roles & 50–950 ramp

primary

#243D77

secondary

#AA8E4D

accent

#B14BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243D77

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

Preview Lab → · Contrast checker → · Palette generator →