#1b213d

Color #1b213d

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 20.91 Nearest Tailwind class slate-900 #0f172b · ΔE 4.8

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Conversions

HEX

#1b213d

RGB

rgb(27, 33, 61)

HSL

hsl(229.4, 38.6%, 17.3%)

HSV / HSB

hsv(229.4, 55.7%, 23.9%)

CMYK

cmyk(55.7%, 45.9%, 0%, 76.1%)

LAB

lab(13.58, 6.72, -18.85)

LCH

lch(13.58, 20.01, 289.62)

OKLCH

oklch(25.7%, 0.0534, 273.01)

HWB

hwb(229.4, 10.6%, 76.1%)

Harmony colors

Complementary

#3d371b

Analogous

#1b323d

#1b213d

#261b3d

Triadic

#1b213d

#3d1b21

#213d1b

Split-complementary

#1b213d

#3d261b

#323d1b

Tetradic

#1b213d

#371b3d

#3d371b

#213d1b

Square

#1b213d

#3d1b32

#3d371b

#1b3d26

Shades

Color #1b213d mixed toward black.

#171c33

#121629

#0e111f

#090b14

#05060a

Tints

Color #1b213d mixed toward white.

#313b6e

#46569f

#6d7bbe

#9ea7d4

#ced3e9

Tones

Color #1b213d mixed toward gray.

#1e233a

#212537

#242735

#262832

#292a2f

Accessibility

Aa White text on this color

15.77:1

Aa Black text on this color

1.33:1

White text reads better on this background (15.77:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1e1e38 · ΔE 2.4

Deuteranopia

#1d1d36 · ΔE 2.6

Tritanopia

#1b3332 · ΔE 20.3

Achromatopsia

#232323 · ΔE 14.4

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

Code

CSS

background-color: #1b213d;

Tailwind (arbitrary value)

bg-[#1b213d]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#1b213d (#1b213d) is rgb(27, 33, 61) in RGB.

No, #1b213d is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #1b213d, or check how it holds up for accessibility.

Generate a palette → Check contrast