#403d51

Color #403d51

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 10.23 Nearest Tailwind class mauve-700 #463947 · ΔE 5.2

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Conversions

HEX

#403d51

RGB

rgb(64, 61, 81)

HSL

hsl(249, 14.1%, 27.8%)

HSV / HSB

hsv(249, 24.7%, 31.8%)

CMYK

cmyk(21%, 24.7%, 0%, 68.2%)

LAB

lab(26.8, 6.17, -11.61)

LCH

lch(26.8, 13.15, 297.99)

OKLCH

oklch(37.1%, 0.0342, 291.46)

HWB

hwb(249, 23.9%, 68.2%)

Harmony colors

Complementary

#4e513d

Analogous

#3d4451

#403d51

#4a3d51

Triadic

#403d51

#51403d

#3d5140

Split-complementary

#403d51

#514a3d

#44513d

Tetradic

#403d51

#513d4e

#4e513d

#3d5140

Square

#403d51

#513d44

#4e513d

#3d514a

Shades

Color #403d51 mixed toward black.

#353343

#2b2936

#201e28

#15141b

#0b0a0d

Tints

Color #403d51 mixed toward white.

#5c5774

#787396

#9a96b0

#bcb9ca

#dddce5

Tones

Color #403d51 mixed toward gray.

#413f4f

#42404e

#43424c

#45444a

#464549

Accessibility

Aa White text on this color

10.48:1

Aa Black text on this color

2:1

White text reads better on this background (10.48:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#3f3f4d · ΔE 3.4

Deuteranopia

#3f3f4c · ΔE 3.9

Tritanopia

#404948 · ΔE 14.8

Achromatopsia

#3f3f3f · ΔE 11.1

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

Code

CSS

background-color: #403d51;

Tailwind (arbitrary value)

bg-[#403d51]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#403d51 (#403d51) is rgb(64, 61, 81) in RGB.

No, #403d51 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 #403d51, or check how it holds up for accessibility.

Generate a palette → Check contrast