#181A47#181A47

#181A47 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.083 H 276.6°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#181A47
RGB	rgb(24, 26, 71)
HSL	hsl(237, 49%, 19%)
HSV	hsv(237, 66%, 28%)
CMYK	cmyk(66.2%, 63.4%, 0%, 72.2%)
CIE-LAB	lab(11.88, 15.14, -28.59)
CIE-LCH	lch(11.88, 32.35, 297.90°)
OKLab	oklab(24.63% 0.0094 -0.082)
OKLCH	oklch(24.63% 0.083 276.6)
XYZ	xyz(1.8830, 1.3878, 6.1287)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A47 #474518

analogous

#183147 #181A47 #2D1847

triadic

#181A47 #47181A #1A4718

tetradic

#181A47 #471831 #474518 #18472D

square

#181A47 #471831 #474518 #18472D

split-complementary

#181A47 #472D18 #314718

monochromatic

#080817 #090919 #181A47 #272B75 #373BA2

Accessibility & contrast

On white

16.44

#181A47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#181A47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A47

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A47	#FFFFFF	#000000	##FFFFFF
##181A47	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002149

Deuteranopia (green-blind)

#001D46

Tritanopia (blue-blind)

#00252D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181a47;
/* rgb */ color: rgb(24, 26, 71);
/* oklch */ color: oklch(24.6% 0.083 276.6);

Tailwind

colors: {
  custom: {
    50: '#5b567b',
    500: '#181a47',
    950: '#000000',
  },
}

SCSS

$custom: #181a47;
$custom-light: #5b567b;
$custom-dark: #000000;

JSON

{
  "hex": "#181a47",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 71
  },
  "hsl": {
    "h": 237.447,
    "s": 49.474,
    "l": 18.627
  },
  "oklch": {
    "l": 0.24634,
    "c": 0.08259,
    "h": 276.6
  },
  "luminance": 0.01388
}

Semantic roles & 50–950 ramp

primary

#181A47

secondary

#7E7B3D

accent

#D34FD9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #181A47

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

Preview Lab → · Contrast checker → · Palette generator →