#1f1f99

Color #1f1f99

A moderately saturated dark blue.

Closest named color Navy #000080 · ΔE 10.29 Nearest Tailwind class indigo-800 #372aac · ΔE 4.3

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Conversions

HEX

#1f1f99

RGB

rgb(31, 31, 153)

HSL

hsl(240, 66.3%, 36.1%)

HSV / HSB

hsv(240, 79.7%, 60%)

CMYK

cmyk(79.7%, 79.7%, 0%, 40%)

LAB

lab(22.2, 42.95, -64.95)

LCH

lch(22.2, 77.87, 303.48)

OKLCH

oklch(34.8%, 0.188, 271.04)

HWB

hwb(240, 12.2%, 40%)

Harmony colors

Complementary

#99991f

Analogous

#1f5c99

#1f1f99

#5c1f99

Triadic

#1f1f99

#991f1f

#1f991f

Split-complementary

#1f1f99

#995c1f

#5c991f

Tetradic

#1f1f99

#991f99

#99991f

#1f991f

Square

#1f1f99

#991f5c

#99991f

#1f995c

Shades

Color #1f1f99 mixed toward black.

#1a1a80

#151566

#10104d

#0a0a33

#05051a

Tints

Color #1f1f99 mixed toward white.

#2828c6

#4a4ada

#7878e4

#a5a5ed

#d2d2f6

Tones

Color #1f1f99 mixed toward gray.

#29298f

#333385

#3e3e7b

#484870

#525266

Accessibility

Aa White text on this color

12.25:1

Aa Black text on this color

1.71:1

White text reads better on this background (12.25:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f88 · ΔE 2.5

Deuteranopia

#1f1f83 · ΔE 3.3

Tritanopia

#1f7874 · ΔE 39.2

Achromatopsia

#353535 · ΔE 28.3

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

Code

CSS

background-color: #1f1f99;

Tailwind (arbitrary value)

bg-[#1f1f99]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1f1f99 (#1f1f99) is rgb(31, 31, 153) in RGB.

No, #1f1f99 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

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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 #1f1f99, or check how it holds up for accessibility.

Generate a palette → Check contrast