#2443A8#2443A8

#2443A8 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.6% C 0.166 H 266.2°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#2443A8
RGB	rgb(36, 67, 168)
HSL	hsl(226, 65%, 40%)
HSV	hsv(226, 79%, 66%)
CMYK	cmyk(78.6%, 60.1%, 0%, 34.1%)
CIE-LAB	lab(32.29, 26.30, -57.44)
CIE-LCH	lch(32.29, 63.18, 294.60°)
OKLab	oklab(42.62% -0.011 -0.166)
OKLCH	oklch(42.62% 0.166 266.2)
XYZ	xyz(9.8001, 7.2154, 37.9144)
Luminance	0.0722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2443A8 #A88924

analogous

#2485A8 #2443A8 #4724A8

triadic

#2443A8 #A82443 #43A824

tetradic

#2443A8 #A82485 #A88924 #24A847

square

#2443A8 #A82485 #A88924 #24A847

split-complementary

#2443A8 #A84724 #85A824

monochromatic

#0E1B43 #192F76 #2443A8 #355BD4 #6884DF

Accessibility & contrast

On white

8.59

#2443A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#2443A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2443A8

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2443A8	#FFFFFF	#000000	##FFFFFF
##2443A8	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#005D6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2443a8;
/* rgb */ color: rgb(36, 67, 168);
/* oklch */ color: oklch(42.6% 0.166 266.2);

Tailwind

colors: {
  custom: {
    50: '#7476c3',
    500: '#2443a8',
    950: '#000000',
  },
}

SCSS

$custom: #2443a8;
$custom-light: #7476c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2443a8",
  "rgb": {
    "r": 36,
    "g": 67,
    "b": 168
  },
  "hsl": {
    "h": 225.909,
    "s": 64.706,
    "l": 40
  },
  "oklch": {
    "l": 0.42619,
    "c": 0.16635,
    "h": 266.2
  },
  "luminance": 0.07217
}

Semantic roles & 50–950 ramp

primary

#2443A8

secondary

#C4AE63

accent

#C040E8

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2443A8

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

Preview Lab → · Contrast checker → · Palette generator →