#1f1f81

Color #1f1f81

A moderately saturated dark blue.

Closest named color Midnight Blue #191970 · ΔE 6.82 Nearest Tailwind class indigo-900 #312c85 · ΔE 3.7

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Conversions

HEX

#1f1f81

RGB

rgb(31, 31, 129)

HSL

hsl(240, 61.2%, 31.4%)

HSV / HSB

hsv(240, 76%, 50.6%)

CMYK

cmyk(76%, 76%, 0%, 49.4%)

LAB

lab(19.46, 34.72, -54.52)

LCH

lch(19.46, 64.64, 302.49)

OKLCH

oklch(32%, 0.1579, 272.98)

HWB

hwb(240, 12.2%, 49.4%)

Harmony colors

Complementary

#81811f

Analogous

#1f5081

#1f1f81

#501f81

Triadic

#1f1f81

#811f1f

#1f811f

Split-complementary

#1f1f81

#81501f

#50811f

Tetradic

#1f1f81

#811f81

#81811f

#1f811f

Square

#1f1f81

#811f50

#81811f

#1f8150

Shades

Color #1f1f81 mixed toward black.

#1a1a6c

#151556

#101041

#0a0a2b

#050516

Tints

Color #1f1f81 mixed toward white.

#2a2ab0

#4343d2

#7272dd

#a1a1e8

#d0d0f4

Tones

Color #1f1f81 mixed toward gray.

#272779

#2f2f71

#383869

#404060

#484858

Accessibility

Aa White text on this color

13.37:1

Aa Black text on this color

1.57:1

White text reads better on this background (13.37:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f72 · ΔE 2.5

Deuteranopia

#1f1f6f · ΔE 3

Tritanopia

#1f6562 · ΔE 34.6

Achromatopsia

#2f2f2f · ΔE 26.5

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

Code

CSS

background-color: #1f1f81;

Tailwind (arbitrary value)

bg-[#1f1f81]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1f1f81 (#1f1f81) is rgb(31, 31, 129) in RGB.

No, #1f1f81 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 #1f1f81, or check how it holds up for accessibility.

Generate a palette → Check contrast