#181A42#181A42

#181A42 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.2% C 0.074 H 277.1°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#181A42
RGB	rgb(24, 26, 66)
HSL	hsl(237, 47%, 18%)
HSV	hsv(237, 64%, 26%)
CMYK	cmyk(63.6%, 60.6%, 0%, 74.1%)
CIE-LAB	lab(11.46, 13.15, -25.77)
CIE-LCH	lch(11.46, 28.93, 297.04°)
OKLab	oklab(24.19% 0.0092 -0.0737)
OKLCH	oklch(24.19% 0.074 277.1)
XYZ	xyz(1.7291, 1.3262, 5.3181)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A42 #424018

analogous

#182F42 #181A42 #2B1842

triadic

#181A42 #42181A #1A4218

tetradic

#181A42 #42182F #424018 #18422B

square

#181A42 #42182F #424018 #18422B

split-complementary

#181A42 #422B18 #2F4218

monochromatic

#080916 #080916 #181A42 #282C6F #393D9C

Accessibility & contrast

On white

16.60

#181A42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181A42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A42

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A42	#FFFFFF	#000000	##FFFFFF
##181A42	1.00	16.60	1.27	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042043

Deuteranopia (green-blind)

#001D41

Tritanopia (blue-blind)

#03232B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181a42;
/* rgb */ color: rgb(24, 26, 66);
/* oklch */ color: oklch(24.2% 0.074 277.1);

Tailwind

colors: {
  custom: {
    50: '#595677',
    500: '#181a42',
    950: '#000000',
  },
}

SCSS

$custom: #181a42;
$custom-light: #595677;
$custom-dark: #000000;

JSON

{
  "hex": "#181a42",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 66
  },
  "hsl": {
    "h": 237.143,
    "s": 46.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.24189,
    "c": 0.07433,
    "h": 277.1
  },
  "luminance": 0.01326
}

Semantic roles & 50–950 ramp

primary

#181A42

secondary

#79763D

accent

#D051D6

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #181A42

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

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