#0a40aa

Color #0a40aa

A vivid, highly saturated dark blue.

Closest named color Slate Blue #6a5acd · ΔE 17.13 Nearest Tailwind class blue-800 #193cb8 · ΔE 3

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

Conversions

HEX

#0a40aa

RGB

rgb(10, 64, 170)

HSL

hsl(219.8, 88.9%, 35.3%)

HSV / HSB

hsv(219.8, 94.1%, 66.7%)

CMYK

cmyk(94.1%, 62.4%, 0%, 33.3%)

LAB

lab(30.95, 27.28, -60.86)

LCH

lch(30.95, 66.69, 294.14)

OKLCH

oklch(41.5%, 0.1781, 262.12)

HWB

hwb(219.8, 3.9%, 33.3%)

Harmony colors

Complementary

#aa740a

Analogous

#0a90aa

#0a40aa

#240aaa

Triadic

#0a40aa

#aa0a40

#40aa0a

Split-complementary

#0a40aa

#aa240a

#90aa0a

Tetradic

#0a40aa

#740aaa

#aa740a

#40aa0a

Square

#0a40aa

#aa0a90

#aa740a

#0aaa24

Shades

Color #0a40aa mixed toward black.

#08358e

#072b71

#052055

#031539

#020b1c

Tints

Color #0a40aa mixed toward white.

#0d53de

#2f71f3

#6395f6

#97b8f9

#cbdcfc

Tones

Color #0a40aa mixed toward gray.

#17449d

#25498f

#324d82

#3f5175

#4d5667

Accessibility

Aa White text on this color

9.03:1

Aa Black text on this color

2.33:1

White text reads better on this background (9.03:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2b2b99 · ΔE 7.4

Deuteranopia

#282494 · ΔE 9.1

Tritanopia

#118985 · ΔE 38.1

Achromatopsia

#494949 · ΔE 26.7

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

Code

CSS

background-color: #0a40aa;

Tailwind (arbitrary value)

bg-[#0a40aa]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#0a40aa (#0a40aa) is rgb(10, 64, 170) in RGB.

No, #0a40aa 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

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 #0a40aa, or check how it holds up for accessibility.

Generate a palette → Check contrast