#181871#181871

#181871 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.7% C 0.146 H 272.3°. Best body text is #FFFFFF at 14.91:1 contrast (WCAG AA passes).

Color values

HEX	#181871
RGB	rgb(24, 24, 113)
HSL	hsl(240, 65%, 27%)
HSV	hsv(240, 79%, 44%)
CMYK	cmyk(78.8%, 78.8%, 0%, 55.7%)
CIE-LAB	lab(15.69, 32.59, -50.50)
CIE-LCH	lch(15.69, 60.10, 302.84°)
OKLab	oklab(28.71% 0.0059 -0.1462)
OKLCH	oklch(28.71% 0.146 272.3)
XYZ	xyz(3.6830, 2.0393, 15.8191)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181871 #717118

analogous

#184571 #181871 #451871

triadic

#181871 #711818 #187118

tetradic

#181871 #711845 #717118 #187145

square

#181871 #711845 #717118 #187145

split-complementary

#181871 #714518 #457118

monochromatic

#050519 #0D0D3F #181871 #2323A3 #3030D3

Accessibility & contrast

On white

14.91

#181871 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#181871 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181871

14.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181871	#FFFFFF	#000000	##FFFFFF
##181871	1.00	14.91	1.41	14.91
#FFFFFF	14.91	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B74

Deuteranopia (green-blind)

#00236F

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181871;
/* rgb */ color: rgb(24, 24, 113);
/* oklch */ color: oklch(28.7% 0.146 272.3);

Tailwind

colors: {
  custom: {
    50: '#66569b',
    500: '#181871',
    950: '#000000',
  },
}

SCSS

$custom: #181871;
$custom-light: #66569b;
$custom-dark: #000000;

JSON

{
  "hex": "#181871",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 113
  },
  "hsl": {
    "h": 240,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.28712,
    "c": 0.14628,
    "h": 272.3
  },
  "luminance": 0.0204
}

Semantic roles & 50–950 ramp

primary

#181871

secondary

#A6A63E

accent

#E840E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181871

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

Preview Lab → · Contrast checker → · Palette generator →