#0a3775

Color #0a3775

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.38 Nearest Tailwind class blue-900 #1c398e · ΔE 4.5

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

Conversions

HEX

#0a3775

RGB

rgb(10, 55, 117)

HSL

hsl(214.8, 84.3%, 24.9%)

HSV / HSB

hsv(214.8, 91.5%, 45.9%)

CMYK

cmyk(91.5%, 53%, 0%, 54.1%)

LAB

lab(23.94, 11.4, -39.61)

LCH

lch(23.94, 41.22, 286.06)

OKLCH

oklch(34.8%, 0.1167, 258.23)

HWB

hwb(214.8, 3.9%, 54.1%)

Harmony colors

Complementary

#75480a

Analogous

#0a6c75

#0a3775

#130a75

Triadic

#0a3775

#750a37

#37750a

Split-complementary

#0a3775

#75130a

#6c750a

Tetradic

#0a3775

#480a75

#75480a

#37750a

Square

#0a3775

#750a6c

#75480a

#0a7513

Shades

Color #0a3775 mixed toward black.

#082e62

#07254e

#051b3b

#031227

#020914

Tints

Color #0a3775 mixed toward white.

#0f53b0

#146eeb

#4f92f0

#89b7f5

#c4dbfa

Tones

Color #0a3775 mixed toward gray.

#13386c

#1c3a63

#253b5a

#2e3d51

#373e48

Accessibility

Aa White text on this color

11.56:1

Aa Black text on this color

1.82:1

White text reads better on this background (11.56:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#25256a · ΔE 8.4

Deuteranopia

#221f67 · ΔE 9.8

Tritanopia

#0f605e · ΔE 28

Achromatopsia

#393939 · ΔE 21.6

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

Code

CSS

background-color: #0a3775;

Tailwind (arbitrary value)

bg-[#0a3775]

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

#0a3775 (#0a3775) is rgb(10, 55, 117) in RGB.

No, #0a3775 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 #0a3775, or check how it holds up for accessibility.

Generate a palette → Check contrast