#2443B2#2443B2

#2443B2 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.5% C 0.180 H 266.5°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#2443B2
RGB	rgb(36, 67, 178)
HSL	hsl(227, 66%, 42%)
HSV	hsv(227, 80%, 70%)
CMYK	cmyk(79.8%, 62.4%, 0%, 30.2%)
CIE-LAB	lab(33.14, 30.12, -62.02)
CIE-LCH	lch(33.14, 68.95, 295.90°)
OKLab	oklab(43.51% -0.0109 -0.1794)
OKLCH	oklch(43.51% 0.18 266.5)
XYZ	xyz(10.7678, 7.6025, 43.0108)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2443B2 #B29324

analogous

#248AB2 #2443B2 #4C24B2

triadic

#2443B2 #B22443 #43B224

tetradic

#2443B2 #B2248A #B29324 #24B24C

square

#2443B2 #B2248A #B29324 #24B24C

split-complementary

#2443B2 #B24C24 #8AB224

monochromatic

#0F1D4C #1A307F #2443B2 #3C5ED8 #6F88E2

Accessibility & contrast

On white

8.33

#2443B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2443B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2443B2

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2443B2	#FFFFFF	#000000	##FFFFFF
##2443B2	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0047B0

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2443b2;
/* rgb */ color: rgb(36, 67, 178);
/* oklch */ color: oklch(43.5% 0.180 266.5);

Tailwind

colors: {
  custom: {
    50: '#7776ca',
    500: '#2443b2',
    950: '#000000',
  },
}

SCSS

$custom: #2443b2;
$custom-light: #7776ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2443b2",
  "rgb": {
    "r": 36,
    "g": 67,
    "b": 178
  },
  "hsl": {
    "h": 226.901,
    "s": 66.355,
    "l": 41.961
  },
  "oklch": {
    "l": 0.43513,
    "c": 0.17975,
    "h": 266.5
  },
  "luminance": 0.07604
}

Semantic roles & 50–950 ramp

primary

#2443B2

secondary

#C8B469

accent

#C43FE9

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2443B2

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

Preview Lab → · Contrast checker → · Palette generator →