#0a2f72

Color #0a2f72

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 13.96 Nearest Tailwind class blue-900 #1c398e · ΔE 4.9

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

Conversions

HEX

#0a2f72

RGB

rgb(10, 47, 114)

HSL

hsl(218.7, 83.9%, 24.3%)

HSV / HSB

hsv(218.7, 91.2%, 44.7%)

CMYK

cmyk(91.2%, 58.8%, 0%, 55.3%)

LAB

lab(21.25, 15.89, -42.04)

LCH

lch(21.25, 44.94, 290.71)

OKLCH

oklch(32.7%, 0.1229, 261.25)

HWB

hwb(218.7, 3.9%, 55.3%)

Harmony colors

Complementary

#724d0a

Analogous

#0a6372

#0a2f72

#190a72

Triadic

#0a2f72

#720a2f

#2f720a

Split-complementary

#0a2f72

#72190a

#63720a

Tetradic

#0a2f72

#4d0a72

#724d0a

#2f720a

Square

#0a2f72

#720a63

#724d0a

#0a7219

Shades

Color #0a2f72 mixed toward black.

#08275f

#071f4c

#051739

#031026

#020813

Tints

Color #0a2f72 mixed toward white.

#0f47ad

#1460e8

#4e87ef

#89aff5

#c4d7fa

Tones

Color #0a2f72 mixed toward gray.

#133169

#1b3461

#243658

#2d394f

#353b47

Accessibility

Aa White text on this color

12.63:1

Aa Black text on this color

1.66:1

White text reads better on this background (12.63:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f2067 · ΔE 6.4

Deuteranopia

#1d1b64 · ΔE 7.7

Tritanopia

#0e5c5a · ΔE 29.3

Achromatopsia

#333333 · ΔE 22.7

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

Code

CSS

background-color: #0a2f72;

Tailwind (arbitrary value)

bg-[#0a2f72]

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

#0a2f72 (#0a2f72) is rgb(10, 47, 114) in RGB.

No, #0a2f72 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 #0a2f72, or check how it holds up for accessibility.

Generate a palette → Check contrast