#1b4085

Color #1b4085

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 12.86 Nearest Tailwind class blue-900 #1c398e · ΔE 3.4

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Conversions

HEX

#1b4085

RGB

rgb(27, 64, 133)

HSL

hsl(219.1, 66.3%, 31.4%)

HSV / HSB

hsv(219.1, 79.7%, 52.2%)

CMYK

cmyk(79.7%, 51.9%, 0%, 47.8%)

LAB

lab(28.36, 13.44, -42.49)

LCH

lch(28.36, 44.56, 287.55)

OKLCH

oklch(38.7%, 0.1237, 261.44)

HWB

hwb(219.1, 10.6%, 47.8%)

Harmony colors

Complementary

#85601b

Analogous

#1b7585

#1b4085

#2b1b85

Triadic

#1b4085

#851b40

#40851b

Split-complementary

#1b4085

#852b1b

#75851b

Tetradic

#1b4085

#601b85

#85601b

#40851b

Square

#1b4085

#851b75

#85601b

#1b852b

Shades

Color #1b4085 mixed toward black.

#16356f

#122b59

#0d2043

#09152c

#040b16

Tints

Color #1b4085 mixed toward white.

#2557b6

#3d73d8

#6e96e2

#9eb9eb

#cfdcf5

Tones

Color #1b4085 mixed toward gray.

#24437c

#2d4573

#36486b

#3e4b62

#474d59

Accessibility

Aa White text on this color

9.91:1

Aa Black text on this color

2.12:1

White text reads better on this background (9.91:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2f2f79 · ΔE 7.7

Deuteranopia

#2d2a76 · ΔE 9

Tritanopia

#1e6e6b · ΔE 29.7

Achromatopsia

#434343 · ΔE 22.5

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

Code

CSS

background-color: #1b4085;

Tailwind (arbitrary value)

bg-[#1b4085]

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

#1b4085 (#1b4085) is rgb(27, 64, 133) in RGB.

No, #1b4085 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 #1b4085, or check how it holds up for accessibility.

Generate a palette → Check contrast