#1b438b

Color #1b438b

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 12.45 Nearest Tailwind class blue-900 #1c398e · ΔE 3.9

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

Conversions

HEX

#1b438b

RGB

rgb(27, 67, 139)

HSL

hsl(218.6, 67.5%, 32.5%)

HSV / HSB

hsv(218.6, 80.6%, 54.5%)

CMYK

cmyk(80.6%, 51.8%, 0%, 45.5%)

LAB

lab(29.69, 13.81, -44.06)

LCH

lch(29.69, 46.17, 287.4)

OKLCH

oklch(39.9%, 0.1284, 261.04)

HWB

hwb(218.6, 10.6%, 45.5%)

Harmony colors

Complementary

#8b631b

Analogous

#1b7b8b

#1b438b

#2b1b8b

Triadic

#1b438b

#8b1b43

#438b1b

Split-complementary

#1b438b

#8b2b1b

#7b8b1b

Tetradic

#1b438b

#631b8b

#8b631b

#438b1b

Square

#1b438b

#8b1b7b

#8b631b

#1b8b2b

Shades

Color #1b438b mixed toward black.

#163874

#122d5d

#0d2145

#09162e

#040b17

Tints

Color #1b438b mixed toward white.

#245abb

#3f76da

#6f98e3

#9fbbec

#cfddf6

Tones

Color #1b438b mixed toward gray.

#244681

#2e4878

#374b6f

#404e66

#4a505c

Accessibility

Aa White text on this color

9.45:1

Aa Black text on this color

2.22:1

White text reads better on this background (9.45:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#31317e · ΔE 8.1

Deuteranopia

#2f2b7b · ΔE 9.7

Tritanopia

#1e7370 · ΔE 30.3

Achromatopsia

#464646 · ΔE 22.9

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

Code

CSS

background-color: #1b438b;

Tailwind (arbitrary value)

bg-[#1b438b]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1b438b (#1b438b) is rgb(27, 67, 139) in RGB.

No, #1b438b 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

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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 #1b438b, or check how it holds up for accessibility.

Generate a palette → Check contrast