#243579#243579

#243579 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.7% C 0.118 H 269.1°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#243579
RGB	rgb(36, 53, 121)
HSL	hsl(228, 54%, 31%)
HSV	hsv(228, 70%, 47%)
CMYK	cmyk(70.2%, 56.2%, 0%, 52.5%)
CIE-LAB	lab(24.64, 17.63, -40.95)
CIE-LCH	lch(24.64, 44.59, 293.29°)
OKLab	oklab(35.7% -0.0019 -0.1177)
OKLCH	oklch(35.7% 0.118 269.1)
XYZ	xyz(5.4507, 4.3012, 18.6284)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243579 #796824

analogous

#245F79 #243579 #3D2479

triadic

#243579 #792435 #357924

tetradic

#243579 #79245F #796824 #24793D

square

#243579 #79245F #796824 #24793D

split-complementary

#243579 #793D24 #5F7924

monochromatic

#080C1B #16204A #243579 #324AA8 #4D66CA

Accessibility & contrast

On white

11.29

#243579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#243579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243579

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243579	#FFFFFF	#000000	##FFFFFF
##243579	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033F7B

Deuteranopia (green-blind)

#003778

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #243579;
/* rgb */ color: rgb(36, 53, 121);
/* oklch */ color: oklch(35.7% 0.118 269.1);

Tailwind

colors: {
  custom: {
    50: '#6a6ba0',
    500: '#243579',
    950: '#000000',
  },
}

SCSS

$custom: #243579;
$custom-light: #6a6ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#243579",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 121
  },
  "hsl": {
    "h": 228,
    "s": 54.14,
    "l": 30.784
  },
  "oklch": {
    "l": 0.35698,
    "c": 0.11777,
    "h": 269.1
  },
  "luminance": 0.04302
}

Semantic roles & 50–950 ramp

primary

#243579

secondary

#AC994D

accent

#C04ADE

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #243579

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

Preview Lab → · Contrast checker → · Palette generator →