#183090#183090

#183090 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.160 H 266.7°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#183090
RGB	rgb(24, 48, 144)
HSL	hsl(228, 71%, 33%)
HSV	hsv(228, 83%, 56%)
CMYK	cmyk(83.3%, 66.7%, 0%, 43.5%)
CIE-LAB	lab(24.71, 28.66, -55.27)
CIE-LCH	lch(24.71, 62.26, 297.41°)
OKLab	oklab(36.21% -0.0093 -0.1601)
OKLCH	oklch(36.21% 0.16 266.7)
XYZ	xyz(6.4659, 4.3209, 26.8734)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183090 #907818

analogous

#186C90 #183090 #3C1890

triadic

#183090 #901830 #309018

tetradic

#183090 #90186C #907818 #18903C

square

#183090 #90186C #907818 #18903C

split-complementary

#183090 #903C18 #6C9018

monochromatic

#070D27 #0F1F5C #183090 #2141C4 #4362E0

Accessibility & contrast

On white

11.26

#183090 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#183090 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183090

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183090	#FFFFFF	#000000	##FFFFFF
##183090	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004093

Deuteranopia (green-blind)

#00358E

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #183090;
/* rgb */ color: rgb(24, 48, 144);
/* oklch */ color: oklch(36.2% 0.160 266.7);

Tailwind

colors: {
  custom: {
    50: '#6c68b1',
    500: '#183090',
    950: '#000000',
  },
}

SCSS

$custom: #183090;
$custom-light: #6c68b1;
$custom-dark: #000000;

JSON

{
  "hex": "#183090",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 144
  },
  "hsl": {
    "h": 228,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36207,
    "c": 0.16034,
    "h": 266.7
  },
  "luminance": 0.04322
}

Semantic roles & 50–950 ramp

primary

#183090

secondary

#C0A743

accent

#CA3AEE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #183090

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

Preview Lab → · Contrast checker → · Palette generator →