#183289#183289

#183289 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.148 H 266.0°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#183289
RGB	rgb(24, 50, 137)
HSL	hsl(226, 70%, 32%)
HSV	hsv(226, 82%, 54%)
CMYK	cmyk(82.5%, 63.5%, 0%, 46.3%)
CIE-LAB	lab(24.58, 24.52, -51.13)
CIE-LCH	lch(24.58, 56.71, 295.62°)
OKLab	oklab(35.91% -0.0103 -0.1479)
OKLCH	oklch(35.91% 0.148 266)
XYZ	xyz(6.0311, 4.2808, 24.1705)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183289 #896F18

analogous

#186B89 #183289 #371889

triadic

#183289 #891832 #328918

tetradic

#183289 #89186B #896F18 #188937

square

#183289 #89186B #896F18 #188937

split-complementary

#183289 #893718 #6B8918

monochromatic

#060C21 #0F1F55 #183289 #2145BD #3E63DD

Accessibility & contrast

On white

11.31

#183289 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#183289 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183289

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183289	#FFFFFF	#000000	##FFFFFF
##183289	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408C

Deuteranopia (green-blind)

#003587

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183289;
/* rgb */ color: rgb(24, 50, 137);
/* oklch */ color: oklch(35.9% 0.148 266.0);

Tailwind

colors: {
  custom: {
    50: '#6a69ac',
    500: '#183289',
    950: '#000000',
  },
}

SCSS

$custom: #183289;
$custom-light: #6a69ac;
$custom-dark: #000000;

JSON

{
  "hex": "#183289",
  "rgb": {
    "r": 24,
    "g": 50,
    "b": 137
  },
  "hsl": {
    "h": 226.195,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35913,
    "c": 0.1483,
    "h": 266
  },
  "luminance": 0.04282
}

Semantic roles & 50–950 ramp

primary

#183289

secondary

#BDA040

accent

#C43BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #183289

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

Preview Lab → · Contrast checker → · Palette generator →