#1d1b36

Color #1d1b36

A muted very dark blue.

Closest named color Black #000000 · ΔE 22.73 Nearest Tailwind class slate-900 #0f172b · ΔE 5.8

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Conversions

HEX

#1d1b36

RGB

rgb(29, 27, 54)

HSL

hsl(244.4, 33.3%, 15.9%)

HSV / HSB

hsv(244.4, 50%, 21.2%)

CMYK

cmyk(46.3%, 50%, 0%, 78.8%)

LAB

lab(11.35, 9.27, -17.38)

LCH

lch(11.35, 19.7, 298.07)

OKLCH

oklch(23.9%, 0.0508, 285.29)

HWB

hwb(244.4, 10.6%, 78.8%)

Harmony colors

Complementary

#34361b

Analogous

#1b2736

#1d1b36

#2b1b36

Triadic

#1d1b36

#361d1b

#1b361d

Split-complementary

#1d1b36

#362b1b

#27361b

Tetradic

#1d1b36

#361b34

#34361b

#1b361d

Square

#1d1b36

#361b27

#34361b

#1b362b

Shades

Color #1d1b36 mixed toward black.

#18172d

#131224

#0f0e1b

#0a0912

#050509

Tints

Color #1d1b36 mixed toward white.

#373366

#504b95

#7570b7

#a3a0cf

#d1cfe7

Tones

Color #1d1b36 mixed toward gray.

#1f1d34

#212032

#23222f

#25242d

#27262b

Accessibility

Aa White text on this color

16.64:1

Aa Black text on this color

1.26:1

White text reads better on this background (16.64:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1c1c31 · ΔE 2.8

Deuteranopia

#1c1c30 · ΔE 3.3

Tritanopia

#1d2c2b · ΔE 20

Achromatopsia

#1e1e1e · ΔE 14.8

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

Code

CSS

background-color: #1d1b36;

Tailwind (arbitrary value)

bg-[#1d1b36]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1d1b36 (#1d1b36) is rgb(29, 27, 54) in RGB.

No, #1d1b36 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 #1d1b36, or check how it holds up for accessibility.

Generate a palette → Check contrast