#243378#243378

#243378 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.2% C 0.119 H 270.0°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#243378
RGB	rgb(36, 51, 120)
HSL	hsl(229, 54%, 31%)
HSV	hsv(229, 70%, 47%)
CMYK	cmyk(70%, 57.5%, 0%, 52.9%)
CIE-LAB	lab(23.99, 18.64, -41.37)
CIE-LCH	lch(23.99, 45.38, 294.25°)
OKLab	oklab(35.19% -0.0001 -0.119)
OKLCH	oklch(35.19% 0.119 270)
XYZ	xyz(5.3004, 4.0983, 18.2774)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243378 #786924

analogous

#245D78 #243378 #3F2478

triadic

#243378 #782433 #337824

tetradic

#243378 #78245D #786924 #24783F

square

#243378 #78245D #786924 #24783F

split-complementary

#243378 #783F24 #5D7824

monochromatic

#080B1A #161F49 #243378 #3247A7 #4D63CA

Accessibility & contrast

On white

11.54

#243378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#243378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243378

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243378	#FFFFFF	#000000	##FFFFFF
##243378	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7A

Deuteranopia (green-blind)

#003577

Tritanopia (blue-blind)

#004450

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #243378;
/* rgb */ color: rgb(36, 51, 120);
/* oklch */ color: oklch(35.2% 0.119 270.0);

Tailwind

colors: {
  custom: {
    50: '#6a6aa0',
    500: '#243378',
    950: '#000000',
  },
}

SCSS

$custom: #243378;
$custom-light: #6a6aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#243378",
  "rgb": {
    "r": 36,
    "g": 51,
    "b": 120
  },
  "hsl": {
    "h": 229.286,
    "s": 53.846,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35185,
    "c": 0.11901,
    "h": 270
  },
  "luminance": 0.04099
}

Semantic roles & 50–950 ramp

primary

#243378

secondary

#AB9A4D

accent

#C34BDD

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #243378

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

Preview Lab → · Contrast checker → · Palette generator →