#1b2d47

Color #1b2d47

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 15.48 Nearest Tailwind class slate-800 #1d293d · ΔE 2.7

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

Conversions

HEX

#1b2d47

RGB

rgb(27, 45, 71)

HSL

hsl(215.5, 44.9%, 19.2%)

HSV / HSB

hsv(215.5, 62%, 27.8%)

CMYK

cmyk(62%, 36.6%, 0%, 72.2%)

LAB

lab(18.21, 1.79, -18.47)

LCH

lch(18.21, 18.56, 275.54)

OKLCH

oklch(29.5%, 0.0534, 257.55)

HWB

hwb(215.5, 10.6%, 72.2%)

Harmony colors

Complementary

#47351b

Analogous

#1b4347

#1b2d47

#1f1b47

Triadic

#1b2d47

#471b2d

#2d471b

Split-complementary

#1b2d47

#471f1b

#43471b

Tetradic

#1b2d47

#351b47

#47351b

#2d471b

Square

#1b2d47

#471b43

#47351b

#1b471f

Shades

Color #1b2d47 mixed toward black.

#16253b

#121e2f

#0d1623

#090f18

#04070c

Tints

Color #1b2d47 mixed toward white.

#2e4c79

#416caa

#6a8fc6

#9bb5d9

#cddaec

Tones

Color #1b2d47 mixed toward gray.

#1f2e43

#222e40

#262f3c

#2a3038

#2d3035

Accessibility

Aa White text on this color

13.88:1

Aa Black text on this color

1.51:1

White text reads better on this background (13.88:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#242442 · ΔE 7.7

Deuteranopia

#232140 · ΔE 8.7

Tritanopia

#1c3d3c · ΔE 17.9

Achromatopsia

#2c2c2c · ΔE 13.1

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

Code

CSS

background-color: #1b2d47;

Tailwind (arbitrary value)

bg-[#1b2d47]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#1b2d47 (#1b2d47) is rgb(27, 45, 71) in RGB.

No, #1b2d47 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 #1b2d47, or check how it holds up for accessibility.

Generate a palette → Check contrast