#3f4651

Color #3f4651

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 3.38 Nearest Tailwind class gray-700 #364153 · ΔE 3.7

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Conversions

HEX

#3f4651

RGB

rgb(63, 70, 81)

HSL

hsl(216.7, 12.5%, 28.2%)

HSV / HSB

hsv(216.7, 22.2%, 31.8%)

CMYK

cmyk(22.2%, 13.6%, 0%, 68.2%)

LAB

lab(29.49, -0.08, -7.53)

LCH

lch(29.49, 7.53, 269.39)

OKLCH

oklch(39.2%, 0.0208, 259.5)

HWB

hwb(216.7, 24.7%, 68.2%)

Harmony colors

Complementary

#514a3f

Analogous

#3f4f51

#3f4651

#413f51

Triadic

#3f4651

#513f46

#46513f

Split-complementary

#3f4651

#51413f

#4f513f

Tetradic

#3f4651

#4a3f51

#514a3f

#46513f

Square

#3f4651

#513f4f

#514a3f

#3f5141

Shades

Color #3f4651 mixed toward black.

#343a43

#2a2f36

#1f2328

#15171b

#0a0c0d

Tints

Color #3f4651 mixed toward white.

#5a6473

#768294

#98a1af

#bac0ca

#dde0e4

Tones

Color #3f4651 mixed toward gray.

#40464f

#42474e

#43474c

#45474b

#464849

Accessibility

Aa White text on this color

9.52:1

Aa Black text on this color

2.21:1

White text reads better on this background (9.52:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#42424f · ΔE 4.5

Deuteranopia

#42414e · ΔE 5.1

Tritanopia

#3f4c4c · ΔE 8.2

Achromatopsia

#454545 · ΔE 6.4

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

Code

CSS

background-color: #3f4651;

Tailwind (arbitrary value)

bg-[#3f4651]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#3f4651 (#3f4651) is rgb(63, 70, 81) in RGB.

No, #3f4651 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 #3f4651, or check how it holds up for accessibility.

Generate a palette → Check contrast