#1f3a58

Color #1f3a58

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 14.39 Nearest Tailwind class slate-700 #314158 · ΔE 3.9

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Conversions

HEX

#1f3a58

RGB

rgb(31, 58, 88)

HSL

hsl(211.6, 47.9%, 23.3%)

HSV / HSB

hsv(211.6, 64.8%, 34.5%)

CMYK

cmyk(64.8%, 34.1%, 0%, 65.5%)

LAB

lab(23.74, 0.25, -21.12)

LCH

lch(23.74, 21.12, 270.68)

OKLCH

oklch(34.2%, 0.0626, 252.32)

HWB

hwb(211.6, 12.2%, 65.5%)

Harmony colors

Complementary

#583d1f

Analogous

#1f5658

#1f3a58

#201f58

Triadic

#1f3a58

#581f3a

#3a581f

Split-complementary

#1f3a58

#58201f

#56581f

Tetradic

#1f3a58

#3d1f58

#583d1f

#3a581f

Square

#1f3a58

#581f56

#583d1f

#1f5820

Shades

Color #1f3a58 mixed toward black.

#1a3049

#15273b

#0f1d2c

#0a131d

#050a0f

Tints

Color #1f3a58 mixed toward white.

#305a88

#4179b8

#6e9bcc

#9fbcdd

#cfdeee

Tones

Color #1f3a58 mixed toward gray.

#243a53

#283a4e

#2d3b4a

#323b45

#373b40

Accessibility

Aa White text on this color

11.64:1

Aa Black text on this color

1.8:1

White text reads better on this background (11.64:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2d2d52 · ΔE 9.8

Deuteranopia

#2b2950 · ΔE 10.7

Tritanopia

#214d4c · ΔE 18.6

Achromatopsia

#383838 · ΔE 14.3

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

Code

CSS

background-color: #1f3a58;

Tailwind (arbitrary value)

bg-[#1f3a58]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Light Steel Blue #b0c4de

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#1f3a58 (#1f3a58) is rgb(31, 58, 88) in RGB.

No, #1f3a58 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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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 #1f3a58, or check how it holds up for accessibility.

Generate a palette → Check contrast