#1b3755

Color #1b3755

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 15.05 Nearest Tailwind class sky-950 #052f4a · ΔE 3.9

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#1b3755

RGB

rgb(27, 55, 85)

HSL

hsl(211, 51.8%, 22%)

HSV / HSB

hsv(211, 68.2%, 33.3%)

CMYK

cmyk(68.2%, 35.3%, 0%, 66.7%)

LAB

lab(22.38, 0.25, -21.31)

LCH

lch(22.38, 21.31, 270.67)

OKLCH

oklch(33.1%, 0.0634, 251.71)

HWB

hwb(211, 10.6%, 66.7%)

Harmony colors

Complementary

#55391b

Analogous

#1b5455

#1b3755

#1c1b55

Triadic

#1b3755

#551b37

#37551b

Split-complementary

#1b3755

#551c1b

#54551b

Tetradic

#1b3755

#391b55

#55391b

#37551b

Square

#1b3755

#551b54

#55391b

#1b551c

Shades

Color #1b3755 mixed toward black.

#172e47

#122539

#0e1c2b

#09121c

#05090e

Tints

Color #1b3755 mixed toward white.

#2b5887

#3b78ba

#689acf

#9abcdf

#cdddef

Tones

Color #1b3755 mixed toward gray.

#203750

#25374b

#2a3847

#2e3842

#33383d

Accessibility

Aa White text on this color

12.18:1

Aa Black text on this color

1.72:1

White text reads better on this background (12.18:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2a2a4f · ΔE 9.9

Deuteranopia

#28264d · ΔE 10.8

Tritanopia

#1d4a49 · ΔE 18.7

Achromatopsia

#353535 · ΔE 14.4

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

Code

CSS

background-color: #1b3755;

Tailwind (arbitrary value)

bg-[#1b3755]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Light Steel Blue #b0c4de

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#1b3755 (#1b3755) is rgb(27, 55, 85) in RGB.

No, #1b3755 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.

Try it → Accessibility

Contrast Checker

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

Try it → Generators

Palette Generator

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

Try it →

Build something with this color

Generate a full palette from #1b3755, or check how it holds up for accessibility.

Generate a palette → Check contrast