#1c3b71

Color #1c3b71

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 19.47 Nearest Tailwind class blue-900 #1c398e · ΔE 5

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

Conversions

HEX

#1c3b71

RGB

rgb(28, 59, 113)

HSL

hsl(218.1, 60.3%, 27.6%)

HSV / HSB

hsv(218.1, 75.2%, 44.3%)

CMYK

cmyk(75.2%, 47.8%, 0%, 55.7%)

LAB

lab(25.46, 8.91, -34.57)

LCH

lch(25.46, 35.7, 284.45)

OKLCH

oklch(36%, 0.1003, 260.65)

HWB

hwb(218.1, 11%, 55.7%)

Harmony colors

Complementary

#71521c

Analogous

#1c6571

#1c3b71

#271c71

Triadic

#1c3b71

#711c3b

#3b711c

Split-complementary

#1c3b71

#71271c

#65711c

Tetradic

#1c3b71

#521c71

#71521c

#3b711c

Square

#1c3b71

#711c65

#71521c

#1c7127

Shades

Color #1c3b71 mixed toward black.

#17315e

#13274b

#0e1d38

#091426

#050a13

Tints

Color #1c3b71 mixed toward white.

#2855a2

#3a70ce

#6b94da

#9cb7e7

#cedbf3

Tones

Color #1c3b71 mixed toward gray.

#233d6a

#2a3f63

#31415c

#384355

#3f444d

Accessibility

Aa White text on this color

10.98:1

Aa Black text on this color

1.91:1

White text reads better on this background (10.98:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2c2d67 · ΔE 7.1

Deuteranopia

#2b2864 · ΔE 8.6

Tritanopia

#1e5e5c · ΔE 26

Achromatopsia

#3c3c3c · ΔE 20.1

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

Code

CSS

background-color: #1c3b71;

Tailwind (arbitrary value)

bg-[#1c3b71]

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

#1c3b71 (#1c3b71) is rgb(28, 59, 113) in RGB.

No, #1c3b71 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #1c3b71, or check how it holds up for accessibility.

Generate a palette → Check contrast