#181A6F#181A6F

#181A6F is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.141 H 272.2°. Best body text is #FFFFFF at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#181A6F
RGB	rgb(24, 26, 111)
HSL	hsl(239, 64%, 26%)
HSV	hsv(239, 78%, 44%)
CMYK	cmyk(78.4%, 76.6%, 0%, 56.5%)
CIE-LAB	lab(15.90, 30.63, -48.85)
CIE-LCH	lch(15.90, 57.66, 302.08°)
OKLab	oklab(28.79% 0.0054 -0.1414)
OKLCH	oklch(28.79% 0.141 272.2)
XYZ	xyz(3.6144, 2.0803, 15.2469)
Luminance	0.0208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A6F #6F6D18

analogous

#18466F #181A6F #42186F

triadic

#181A6F #6F181A #1A6F18

tetradic

#181A6F #6F1846 #6F6D18 #186F42

square

#181A6F #6F1846 #6F6D18 #186F42

split-complementary

#181A6F #6F4218 #466F18

monochromatic

#050619 #0D0E3D #181A6F #2326A1 #2F33D2

Accessibility & contrast

On white

14.83

#181A6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#181A6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A6F

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A6F	#FFFFFF	#000000	##FFFFFF
##181A6F	1.00	14.83	1.42	14.83
#FFFFFF	14.83	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C71

Deuteranopia (green-blind)

#00236D

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181a6f;
/* rgb */ color: rgb(24, 26, 111);
/* oklch */ color: oklch(28.8% 0.141 272.2);

Tailwind

colors: {
  custom: {
    50: '#655799',
    500: '#181a6f',
    950: '#000000',
  },
}

SCSS

$custom: #181a6f;
$custom-light: #655799;
$custom-dark: #000000;

JSON

{
  "hex": "#181a6f",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 111
  },
  "hsl": {
    "h": 238.621,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.28793,
    "c": 0.14149,
    "h": 272.2
  },
  "luminance": 0.02081
}

Semantic roles & 50–950 ramp

primary

#181A6F

secondary

#A5A23E

accent

#E440E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181A6F

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

Preview Lab → · Contrast checker → · Palette generator →