#183189#183189

#183189 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.150 H 266.3°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#183189
RGB	rgb(24, 49, 137)
HSL	hsl(227, 70%, 32%)
HSV	hsv(227, 82%, 54%)
CMYK	cmyk(82.5%, 64.2%, 0%, 46.3%)
CIE-LAB	lab(24.31, 25.21, -51.57)
CIE-LCH	lch(24.31, 57.41, 296.05°)
OKLab	oklab(35.71% -0.0097 -0.1492)
OKLCH	oklch(35.71% 0.15 266.3)
XYZ	xyz(5.9888, 4.1963, 24.1564)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183189 #897018

analogous

#186A89 #183189 #381889

triadic

#183189 #891831 #318918

tetradic

#183189 #89186A #897018 #188938

square

#183189 #89186A #897018 #188938

split-complementary

#183189 #893818 #6A8918

monochromatic

#060C21 #0F1E55 #183189 #2144BD #3E61DD

Accessibility & contrast

On white

11.42

#183189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#183189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183189

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183189	#FFFFFF	#000000	##FFFFFF
##183189	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8C

Deuteranopia (green-blind)

#003587

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183189;
/* rgb */ color: rgb(24, 49, 137);
/* oklch */ color: oklch(35.7% 0.150 266.3);

Tailwind

colors: {
  custom: {
    50: '#6a68ac',
    500: '#183189',
    950: '#000000',
  },
}

SCSS

$custom: #183189;
$custom-light: #6a68ac;
$custom-dark: #000000;

JSON

{
  "hex": "#183189",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 137
  },
  "hsl": {
    "h": 226.726,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35714,
    "c": 0.14955,
    "h": 266.3
  },
  "luminance": 0.04197
}

Semantic roles & 50–950 ramp

primary

#183189

secondary

#BDA140

accent

#C63BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #183189

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

Preview Lab → · Contrast checker → · Palette generator →