#05217b

Color #05217b

A vivid, highly saturated dark blue.

Closest named color Midnight Blue #191970 · ΔE 4.69 Nearest Tailwind class indigo-900 #312c85 · ΔE 4.8

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Conversions

HEX

#05217b

RGB

rgb(5, 33, 123)

HSL

hsl(225.8, 92.2%, 25.1%)

HSV / HSB

hsv(225.8, 95.9%, 48.2%)

CMYK

cmyk(95.9%, 73.2%, 0%, 51.8%)

LAB

lab(18.14, 29.33, -52.91)

LCH

lch(18.14, 60.5, 299)

OKLCH

oklch(30.6%, 0.1543, 264.31)

HWB

hwb(225.8, 2%, 51.8%)

Harmony colors

Complementary

#7b5f05

Analogous

#055c7b

#05217b

#24057b

Triadic

#05217b

#7b0521

#217b05

Split-complementary

#05217b

#7b2405

#5c7b05

Tetradic

#05217b

#5f057b

#7b5f05

#217b05

Square

#05217b

#7b055c

#7b5f05

#057b24

Shades

Color #05217b mixed toward black.

#041b67

#031652

#02103e

#020b29

#010515

Tints

Color #05217b mixed toward white.

#0731b8

#0a42f5

#4771f8

#85a0fa

#c2d0fd

Tones

Color #05217b mixed toward gray.

#0f2671

#192b67

#22305e

#2c3654

#363b4a

Accessibility

Aa White text on this color

13.91:1

Aa Black text on this color

1.51:1

White text reads better on this background (13.91:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#15156d · ΔE 4

Deuteranopia

#13116a · ΔE 4.9

Tritanopia

#07615e · ΔE 34.4

Achromatopsia

#2c2c2c · ΔE 25.8

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

Code

CSS

background-color: #05217b;

Tailwind (arbitrary value)

bg-[#05217b]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#05217b (#05217b) is rgb(5, 33, 123) in RGB.

No, #05217b 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 #05217b, or check how it holds up for accessibility.

Generate a palette → Check contrast