#183278#183278

#183278 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.4% C 0.124 H 265.0°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#183278
RGB	rgb(24, 50, 120)
HSL	hsl(224, 67%, 28%)
HSV	hsv(224, 80%, 47%)
CMYK	cmyk(80%, 58.3%, 0%, 52.9%)
CIE-LAB	lab(23.10, 17.62, -42.84)
CIE-LCH	lch(23.10, 46.32, 292.35°)
OKLab	oklab(34.35% -0.0108 -0.1236)
OKLCH	oklch(34.35% 0.124 265)
XYZ	xyz(4.9063, 3.8309, 18.2465)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183278 #785E18

analogous

#186278 #183278 #2E1878

triadic

#183278 #781832 #327818

tetradic

#183278 #781862 #785E18 #18782E

square

#183278 #781862 #785E18 #18782E

split-complementary

#183278 #782E18 #627818

monochromatic

#050B1A #0E1D45 #183278 #2247AB #3460D6

Accessibility & contrast

On white

11.89

#183278 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#183278 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183278

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183278	#FFFFFF	#000000	##FFFFFF
##183278	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7A

Deuteranopia (green-blind)

#003377

Tritanopia (blue-blind)

#00434F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183278;
/* rgb */ color: rgb(24, 50, 120);
/* oklch */ color: oklch(34.4% 0.124 265.0);

Tailwind

colors: {
  custom: {
    50: '#6569a0',
    500: '#183278',
    950: '#000000',
  },
}

SCSS

$custom: #183278;
$custom-light: #6569a0;
$custom-dark: #000000;

JSON

{
  "hex": "#183278",
  "rgb": {
    "r": 24,
    "g": 50,
    "b": 120
  },
  "hsl": {
    "h": 223.75,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.34352,
    "c": 0.12408,
    "h": 265
  },
  "luminance": 0.03831
}

Semantic roles & 50–950 ramp

primary

#183278

secondary

#AD8F3F

accent

#BB3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #183278

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

Preview Lab → · Contrast checker → · Palette generator →