#1b1d2b

Color #1b1d2b

A muted very dark blue.

Closest named color Black #000000 · ΔE 15.16 Nearest Tailwind class gray-900 #101828 · ΔE 3.2

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Conversions

HEX

#1b1d2b

RGB

rgb(27, 29, 43)

HSL

hsl(232.5, 22.9%, 13.7%)

HSV / HSB

hsv(232.5, 37.2%, 16.9%)

CMYK

cmyk(37.2%, 32.6%, 0%, 83.1%)

LAB

lab(11.18, 3.26, -9.71)

LCH

lch(11.18, 10.24, 288.56)

OKLCH

oklch(23.5%, 0.0272, 277.83)

HWB

hwb(232.5, 10.6%, 83.1%)

Harmony colors

Complementary

#2b291b

Analogous

#1b252b

#1b1d2b

#211b2b

Triadic

#1b1d2b

#2b1b1d

#1d2b1b

Split-complementary

#1b1d2b

#2b211b

#252b1b

Tetradic

#1b1d2b

#291b2b

#2b291b

#1d2b1b

Square

#1b1d2b

#2b1b25

#2b291b

#1b2b21

Shades

Color #1b1d2b mixed toward black.

#161824

#12131d

#0d0e15

#090a0e

#040507

Tints

Color #1b1d2b mixed toward white.

#373b58

#535a85

#787eaa

#a5a9c6

#d2d4e3

Tones

Color #1b1d2b mixed toward gray.

#1c1e2a

#1e1f28

#1f2027

#202126

#222224

Accessibility

Aa White text on this color

16.7:1

Aa Black text on this color

1.26:1

White text reads better on this background (16.7:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1c1c28 · ΔE 1.3

Deuteranopia

#1c1c27 · ΔE 1.7

Tritanopia

#1b2625 · ΔE 12.6

Achromatopsia

#1e1e1e · ΔE 8.7

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

Code

CSS

background-color: #1b1d2b;

Tailwind (arbitrary value)

bg-[#1b1d2b]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#1b1d2b (#1b1d2b) is rgb(27, 29, 43) in RGB.

No, #1b1d2b 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 #1b1d2b, or check how it holds up for accessibility.

Generate a palette → Check contrast