#1b1828

Color #1b1828

A muted very dark blue.

Closest named color Black #000000 · ΔE 15.21 Nearest Tailwind class mauve-900 #1d161e · ΔE 4.7

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Conversions

HEX

#1b1828

RGB

rgb(27, 24, 40)

HSL

hsl(251.3, 25%, 12.5%)

HSV / HSB

hsv(251.3, 40%, 15.7%)

CMYK

cmyk(32.5%, 40%, 0%, 84.3%)

LAB

lab(9.32, 6.05, -10.38)

LCH

lch(9.32, 12.01, 300.24)

OKLCH

oklch(22.1%, 0.0311, 292.28)

HWB

hwb(251.3, 9.4%, 84.3%)

Harmony colors

Complementary

#252818

Analogous

#181d28

#1b1828

#231828

Triadic

#1b1828

#281b18

#18281b

Split-complementary

#1b1828

#282318

#1d2818

Tetradic

#1b1828

#281825

#252818

#18281b

Square

#1b1828

#28181d

#252818

#182823

Shades

Color #1b1828 mixed toward black.

#161421

#12101b

#0d0c14

#09080d

#040407

Tints

Color #1b1828 mixed toward white.

#3a3456

#5a5085

#7e74ab

#a9a2c7

#d4d1e3

Tones

Color #1b1828 mixed toward gray.

#1c1927

#1d1b25

#1d1c24

#1e1d23

#1f1f21

Accessibility

Aa White text on this color

17.39:1

Aa Black text on this color

1.21:1

White text reads better on this background (17.39:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1a1a25 · ΔE 3.6

Deuteranopia

#1a1a24 · ΔE 4.1

Tritanopia

#1b2221 · ΔE 14

Achromatopsia

#1a1a1a · ΔE 10.5

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

Code

CSS

background-color: #1b1828;

Tailwind (arbitrary value)

bg-[#1b1828]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#1b1828 (#1b1828) is rgb(27, 24, 40) in RGB.

No, #1b1828 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 #1b1828, or check how it holds up for accessibility.

Generate a palette → Check contrast