#3f4b7d

Color #3f4b7d

A muted dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 20.26 Nearest Tailwind class slate-600 #45556c · ΔE 7.8

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#3f4b7d

RGB

rgb(63, 75, 125)

HSL

hsl(228.4, 33%, 36.9%)

HSV / HSB

hsv(228.4, 49.6%, 49%)

CMYK

cmyk(49.6%, 40%, 0%, 51%)

LAB

lab(33.07, 10.03, -29.88)

LCH

lch(33.07, 31.52, 288.56)

OKLCH

oklch(42.7%, 0.0845, 272.17)

HWB

hwb(228.4, 24.7%, 51%)

Harmony colors

Complementary

#7d713f

Analogous

#3f6a7d

#3f4b7d

#523f7d

Triadic

#3f4b7d

#7d3f4b

#4b7d3f

Split-complementary

#3f4b7d

#7d523f

#6a7d3f

Tetradic

#3f4b7d

#713f7d

#7d713f

#4b7d3f

Square

#3f4b7d

#7d3f6a

#7d713f

#3f7d52

Shades

Color #3f4b7d mixed toward black.

#353f68

#2a3253

#20263f

#15192a

#0b0d15

Tints

Color #3f4b7d mixed toward white.

#5160a1

#707eb7

#949ec9

#b8bfdb

#dbdfed

Tones

Color #3f4b7d mixed toward gray.

#444e78

#495173

#4f556e

#545868

#595b63

Accessibility

Aa White text on this color

8.35:1

Aa Black text on this color

2.51:1

White text reads better on this background (8.35:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#444573 · ΔE 3.7

Deuteranopia

#444371 · ΔE 4.5

Tritanopia

#406b69 · ΔE 25

Achromatopsia

#4e4e4e · ΔE 18.9

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

Code

CSS

background-color: #3f4b7d;

Tailwind (arbitrary value)

bg-[#3f4b7d]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#3f4b7d (#3f4b7d) is rgb(63, 75, 125) in RGB.

No, #3f4b7d 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 #3f4b7d, or check how it holds up for accessibility.

Generate a palette → Check contrast