#001591

Color #001591

A vivid, highly saturated dark blue.

Closest named color Navy #000080 · ΔE 6.52 Nearest Tailwind class indigo-900 #312c85 · ΔE 6.6

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Conversions

HEX

#001591

RGB

rgb(0, 21, 145)

HSL

hsl(231.3, 100%, 28.4%)

HSV / HSB

hsv(231.3, 100%, 56.9%)

CMYK

cmyk(100%, 85.5%, 0%, 43.1%)

LAB

lab(18.28, 44.2, -66.55)

LCH

lch(18.28, 79.89, 303.59)

OKLCH

oklch(31.4%, 0.1939, 264.17)

HWB

hwb(231.3, 0%, 43.1%)

Harmony colors

Complementary

#917c00

Analogous

#005d91

#001591

#330091

Triadic

#001591

#910015

#159100

Split-complementary

#001591

#913300

#5d9100

Tetradic

#001591

#7c0091

#917c00

#159100

Square

#001591

#91005d

#917c00

#009133

Shades

Color #001591 mixed toward black.

#001279

#000e61

#000b48

#000730

#000418

Tints

Color #001591 mixed toward white.

#001ece

#0c2fff

#4863ff

#8597ff

#c2cbff

Tones

Color #001591 mixed toward gray.

#0c1e85

#182679

#242f6d

#303761

#3c4054

Accessibility

Aa White text on this color

13.85:1

Aa Black text on this color

1.52:1

White text reads better on this background (13.85:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#0b0b80 · ΔE 3

Deuteranopia

#09077c · ΔE 3.8

Tritanopia

#01716d · ΔE 39.8

Achromatopsia

#2d2d2d · ΔE 28.6

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

Code

CSS

background-color: #001591;

Tailwind (arbitrary value)

bg-[#001591]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#001591 (#001591) is rgb(0, 21, 145) in RGB.

No, #001591 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.

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Build something with this color

Generate a full palette from #001591, or check how it holds up for accessibility.

Generate a palette → Check contrast