#181371#181371

#181371 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.151 H 273.0°. Best body text is #FFFFFF at 15.32:1 contrast (WCAG AA passes).

Color values

HEX	#181371
RGB	rgb(24, 19, 113)
HSL	hsl(243, 71%, 26%)
HSV	hsv(243, 83%, 44%)
CMYK	cmyk(78.8%, 83.2%, 0%, 55.7%)
CIE-LAB	lab(14.69, 35.47, -52.16)
CIE-LCH	lch(14.69, 63.07, 304.21°)
OKLab	oklab(28.01% 0.008 -0.1509)
OKLCH	oklch(28.01% 0.151 273)
XYZ	xyz(3.5892, 1.8518, 15.7879)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181371 #6C7113

analogous

#133D71 #181371 #471371

triadic

#181371 #711813 #137118

tetradic

#181371 #71133D #6C7113 #137147

square

#181371 #71133D #6C7113 #137147

split-complementary

#181371 #714713 #3D7113

monochromatic

#06041A #0D0A3D #181371 #231CA5 #2E25DA

Accessibility & contrast

On white

15.32

#181371 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#181371 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181371

15.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181371	#FFFFFF	#000000	##FFFFFF
##181371	1.00	15.32	1.37	15.32
#FFFFFF	15.32	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002974

Deuteranopia (green-blind)

#00206F

Tritanopia (blue-blind)

#003042

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #181371;
/* rgb */ color: rgb(24, 19, 113);
/* oklch */ color: oklch(28.0% 0.151 273.0);

Tailwind

colors: {
  custom: {
    50: '#66539b',
    500: '#181371',
    950: '#000000',
  },
}

SCSS

$custom: #181371;
$custom-light: #66539b;
$custom-dark: #000000;

JSON

{
  "hex": "#181371",
  "rgb": {
    "r": 24,
    "g": 19,
    "b": 113
  },
  "hsl": {
    "h": 243.191,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28007,
    "c": 0.15112,
    "h": 273
  },
  "luminance": 0.01852
}

Semantic roles & 50–950 ramp

primary

#181371

secondary

#A2A838

accent

#EE3AE4

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #181371

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

Preview Lab → · Contrast checker → · Palette generator →