#181A45#181A45

#181A45 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.079 H 276.8°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#181A45
RGB	rgb(24, 26, 69)
HSL	hsl(237, 48%, 18%)
HSV	hsv(237, 65%, 27%)
CMYK	cmyk(65.2%, 62.3%, 0%, 72.9%)
CIE-LAB	lab(11.71, 14.34, -27.47)
CIE-LCH	lch(11.71, 30.99, 297.57°)
OKLab	oklab(24.45% 0.0094 -0.0787)
OKLCH	oklch(24.45% 0.079 276.8)
XYZ	xyz(1.8199, 1.3625, 5.7962)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A45 #454318

analogous

#183045 #181A45 #2C1845

triadic

#181A45 #45181A #1A4518

tetradic

#181A45 #451830 #454318 #18452C

square

#181A45 #451830 #454318 #18452C

split-complementary

#181A45 #452C18 #304518

monochromatic

#080917 #080918 #181A45 #282B72 #383CA0

Accessibility & contrast

On white

16.50

#181A45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181A45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A45

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A45	#FFFFFF	#000000	##FFFFFF
##181A45	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002146

Deuteranopia (green-blind)

#001D44

Tritanopia (blue-blind)

#00242C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181a45;
/* rgb */ color: rgb(24, 26, 69);
/* oklch */ color: oklch(24.5% 0.079 276.8);

Tailwind

colors: {
  custom: {
    50: '#5a5679',
    500: '#181a45',
    950: '#000000',
  },
}

SCSS

$custom: #181a45;
$custom-light: #5a5679;
$custom-dark: #000000;

JSON

{
  "hex": "#181a45",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 69
  },
  "hsl": {
    "h": 237.333,
    "s": 48.387,
    "l": 18.235
  },
  "oklch": {
    "l": 0.24453,
    "c": 0.07931,
    "h": 276.8
  },
  "luminance": 0.01363
}

Semantic roles & 50–950 ramp

primary

#181A45

secondary

#7C793D

accent

#D250D8

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #181A45

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

Preview Lab → · Contrast checker → · Palette generator →