#0a3c91

Color #0a3c91

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 11.38 Nearest Tailwind class blue-900 #1c398e · ΔE 1.9

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

Conversions

HEX

#0a3c91

RGB

rgb(10, 60, 145)

HSL

hsl(217.8, 87.1%, 30.4%)

HSV / HSB

hsv(217.8, 93.1%, 56.9%)

CMYK

cmyk(93.1%, 58.6%, 0%, 43.1%)

LAB

lab(27.68, 19.79, -51.04)

LCH

lch(27.68, 54.74, 291.19)

OKLCH

oklch(38.3%, 0.1496, 260.85)

HWB

hwb(217.8, 3.9%, 43.1%)

Harmony colors

Complementary

#915f0a

Analogous

#0a7f91

#0a3c91

#1c0a91

Triadic

#0a3c91

#910a3c

#3c910a

Split-complementary

#0a3c91

#911c0a

#7f910a

Tetradic

#0a3c91

#5f0a91

#915f0a

#3c910a

Square

#0a3c91

#910a7f

#915f0a

#0a911c

Shades

Color #0a3c91 mixed toward black.

#083279

#072861

#051e49

#031430

#020a18

Tints

Color #0a3c91 mixed toward white.

#0e53c8

#226ef0

#5992f4

#90b6f7

#c8dbfb

Tones

Color #0a3c91 mixed toward gray.

#153f86

#21427b

#2c456f

#374864

#424b59

Accessibility

Aa White text on this color

10.15:1

Aa Black text on this color

2.07:1

White text reads better on this background (10.15:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#282883 · ΔE 7.9

Deuteranopia

#25227f · ΔE 9.3

Tritanopia

#107673 · ΔE 33.5

Achromatopsia

#414141 · ΔE 24.7

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

Code

CSS

background-color: #0a3c91;

Tailwind (arbitrary value)

bg-[#0a3c91]

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

#0a3c91 (#0a3c91) is rgb(10, 60, 145) in RGB.

No, #0a3c91 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.

Try it → Accessibility

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 #0a3c91, or check how it holds up for accessibility.

Generate a palette → Check contrast