#1b182c

Color #1b182c

A muted very dark blue.

Closest named color Black #000000 · ΔE 17.72 Nearest Tailwind class slate-900 #0f172b · ΔE 4.9

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Conversions

HEX

#1b182c

RGB

rgb(27, 24, 44)

HSL

hsl(249, 29.4%, 13.3%)

HSV / HSB

hsv(249, 45.5%, 17.3%)

CMYK

cmyk(38.6%, 45.5%, 0%, 82.7%)

LAB

lab(9.55, 7.37, -12.98)

LCH

lch(9.55, 14.93, 299.59)

OKLCH

oklch(22.3%, 0.0385, 289.75)

HWB

hwb(249, 9.4%, 82.7%)

Harmony colors

Complementary

#292c18

Analogous

#181f2c

#1b182c

#25182c

Triadic

#1b182c

#2c1b18

#182c1b

Split-complementary

#1b182c

#2c2518

#1f2c18

Tetradic

#1b182c

#2c1829

#292c18

#182c1b

Square

#1b182c

#2c181f

#292c18

#182c25

Shades

Color #1b182c mixed toward black.

#161425

#12101d

#0d0c16

#09080f

#040407

Tints

Color #1b182c mixed toward white.

#38325c

#554c8b

#7a70b1

#a6a0cb

#d3cfe5

Tones

Color #1b182c mixed toward gray.

#1c1a2a

#1d1b29

#1e1d27

#201f25

#212024

Accessibility

Aa White text on this color

17.3:1

Aa Black text on this color

1.21:1

White text reads better on this background (17.3:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1a1a28 · ΔE 3.7

Deuteranopia

#1a1a27 · ΔE 4.2

Tritanopia

#1b2524 · ΔE 16.7

Achromatopsia

#1b1b1b · ΔE 12.3

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #1b182c;

Tailwind (arbitrary value)

bg-[#1b182c]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1b182c (#1b182c) is rgb(27, 24, 44) in RGB.

No, #1b182c is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #1b182c, or check how it holds up for accessibility.

Generate a palette → Check contrast