#0a42a1

Color #0a42a1

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 14.26 Nearest Tailwind class blue-900 #1c398e · ΔE 3.9

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

Conversions

HEX

#0a42a1

RGB

rgb(10, 66, 161)

HSL

hsl(217.7, 88.3%, 33.5%)

HSV / HSB

hsv(217.7, 93.8%, 63.1%)

CMYK

cmyk(93.8%, 59%, 0%, 36.9%)

LAB

lab(30.72, 22.26, -55.83)

LCH

lch(30.72, 60.1, 291.74)

OKLCH

oklch(41.1%, 0.1636, 260.93)

HWB

hwb(217.7, 3.9%, 36.9%)

Harmony colors

Complementary

#a1690a

Analogous

#0a8da1

#0a42a1

#1d0aa1

Triadic

#0a42a1

#a10a42

#42a10a

Split-complementary

#0a42a1

#a11d0a

#8da10a

Tetradic

#0a42a1

#690aa1

#a1690a

#42a10a

Square

#0a42a1

#a10a8d

#a1690a

#0aa11d

Shades

Color #0a42a1 mixed toward black.

#083786

#072c6b

#052150

#031636

#020b1b

Tints

Color #0a42a1 mixed toward white.

#0d58d6

#2a74f2

#5f97f5

#95baf8

#cadcfc

Tones

Color #0a42a1 mixed toward gray.

#174594

#234988

#304c7b

#3c4f6f

#495262

Accessibility

Aa White text on this color

9.1:1

Aa Black text on this color

2.31:1

White text reads better on this background (9.1:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2c2d91 · ΔE 8.1

Deuteranopia

#29258d · ΔE 10

Tritanopia

#11837f · ΔE 35.9

Achromatopsia

#484848 · ΔE 25.6

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

Code

CSS

background-color: #0a42a1;

Tailwind (arbitrary value)

bg-[#0a42a1]

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

#0a42a1 (#0a42a1) is rgb(10, 66, 161) in RGB.

No, #0a42a1 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.

Try it →

Build something with this color

Generate a full palette from #0a42a1, or check how it holds up for accessibility.

Generate a palette → Check contrast