#0b2d78

Color #0b2d78

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 12 Nearest Tailwind class blue-900 #1c398e · ΔE 4.4

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

Conversions

HEX

#0b2d78

RGB

rgb(11, 45, 120)

HSL

hsl(221.3, 83.2%, 25.7%)

HSV / HSB

hsv(221.3, 90.8%, 47.1%)

CMYK

cmyk(90.8%, 62.5%, 0%, 52.9%)

LAB

lab(21.22, 19.98, -45.93)

LCH

lch(21.22, 50.09, 293.51)

OKLCH

oklch(32.8%, 0.134, 262.89)

HWB

hwb(221.3, 4.3%, 52.9%)

Harmony colors

Complementary

#78560b

Analogous

#0b6478

#0b2d78

#200b78

Triadic

#0b2d78

#780b2d

#2d780b

Split-complementary

#0b2d78

#78200b

#64780b

Tetradic

#0b2d78

#560b78

#78560b

#2d780b

Square

#0b2d78

#780b64

#78560b

#0b7820

Shades

Color #0b2d78 mixed toward black.

#092564

#071e50

#06163c

#040f28

#020714

Tints

Color #0b2d78 mixed toward white.

#1043b2

#1859ea

#5183ef

#8bacf4

#c5d6fa

Tones

Color #0b2d78 mixed toward gray.

#14306f

#1d3466

#26375d

#2f3b54

#383e4b

Accessibility

Aa White text on this color

12.64:1

Aa Black text on this color

1.66:1

White text reads better on this background (12.64:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1e1f6c · ΔE 5.6

Deuteranopia

#1c1a68 · ΔE 6.9

Tritanopia

#0e605e · ΔE 31

Achromatopsia

#333333 · ΔE 23.8

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

Code

CSS

background-color: #0b2d78;

Tailwind (arbitrary value)

bg-[#0b2d78]

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

#0b2d78 (#0b2d78) is rgb(11, 45, 120) in RGB.

No, #0b2d78 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 #0b2d78, or check how it holds up for accessibility.

Generate a palette → Check contrast