#181790#181790

#181790 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.3% C 0.186 H 269.9°. Best body text is #FFFFFF at 13.43:1 contrast (WCAG AA passes).

Color values

HEX	#181790
RGB	rgb(24, 23, 144)
HSL	hsl(240, 72%, 33%)
HSV	hsv(240, 84%, 56%)
CMYK	cmyk(83.3%, 84%, 0%, 43.5%)
CIE-LAB	lab(19.31, 43.70, -64.19)
CIE-LCH	lch(19.31, 77.65, 304.25°)
OKLab	oklab(32.35% -0.0004 -0.1858)
OKLCH	oklch(32.35% 0.186 269.9)
XYZ	xyz(5.7154, 2.8199, 26.6232)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181790 #8F9017

analogous

#175290 #181790 #551790

triadic

#181790 #901817 #179018

tetradic

#181790 #901752 #8F9017 #179055

square

#181790 #901752 #8F9017 #179055

split-complementary

#181790 #905517 #529017

monochromatic

#060626 #0F0F5B #181790 #211FC5 #4241E1

Accessibility & contrast

On white

13.43

#181790 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#181790 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181790

13.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181790	#FFFFFF	#000000	##FFFFFF
##181790	1.00	13.43	1.56	13.43
#FFFFFF	13.43	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003593

Deuteranopia (green-blind)

#00288E

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #181790;
/* rgb */ color: rgb(24, 23, 144);
/* oklch */ color: oklch(32.3% 0.186 269.9);

Tailwind

colors: {
  custom: {
    50: '#6f58b2',
    500: '#181790',
    950: '#000000',
  },
}

SCSS

$custom: #181790;
$custom-light: #6f58b2;
$custom-dark: #000000;

JSON

{
  "hex": "#181790",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 144
  },
  "hsl": {
    "h": 240.496,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32346,
    "c": 0.18582,
    "h": 269.9
  },
  "luminance": 0.02821
}

Semantic roles & 50–950 ramp

primary

#181790

secondary

#C0C142

accent

#EF39EE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #181790

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

Preview Lab → · Contrast checker → · Palette generator →