#0b3571

Color #0b3571

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 17.17 Nearest Tailwind class blue-900 #1c398e · ΔE 4.9

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

Conversions

HEX

#0b3571

RGB

rgb(11, 53, 113)

HSL

hsl(215.3, 82.3%, 24.3%)

HSV / HSB

hsv(215.3, 90.3%, 44.3%)

CMYK

cmyk(90.3%, 53.1%, 0%, 55.7%)

LAB

lab(23.03, 11.17, -38.52)

LCH

lch(23.03, 40.11, 286.17)

OKLCH

oklch(34%, 0.1133, 258.54)

HWB

hwb(215.3, 4.3%, 55.7%)

Harmony colors

Complementary

#71470b

Analogous

#0b6871

#0b3571

#140b71

Triadic

#0b3571

#710b35

#35710b

Split-complementary

#0b3571

#71140b

#68710b

Tetradic

#0b3571

#470b71

#71470b

#35710b

Square

#0b3571

#710b68

#71470b

#0b7114

Shades

Color #0b3571 mixed toward black.

#092c5e

#07234b

#051a38

#041226

#020913

Tints

Color #0b3571 mixed toward white.

#1150ac

#166ce6

#4f90ee

#8ab5f4

#c4daf9

Tones

Color #0b3571 mixed toward gray.

#133668

#1c3860

#243957

#2d3b4f

#353c46

Accessibility

Aa White text on this color

11.92:1

Aa Black text on this color

1.76:1

White text reads better on this background (11.92:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#242466 · ΔE 8

Deuteranopia

#211e64 · ΔE 9.5

Tritanopia

#0f5d5b · ΔE 27.7

Achromatopsia

#373737 · ΔE 21.4

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

Code

CSS

background-color: #0b3571;

Tailwind (arbitrary value)

bg-[#0b3571]

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

#0b3571 (#0b3571) is rgb(11, 53, 113) in RGB.

No, #0b3571 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 #0b3571, or check how it holds up for accessibility.

Generate a palette → Check contrast