#40403f

Color #40403f

A nearly neutral, gray-leaning dark yellow.

Closest named color Charcoal #36454f · ΔE 9.19 Nearest Tailwind class neutral-700 #404040 · ΔE 0.7

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Conversions

HEX

#40403f

RGB

rgb(64, 64, 63)

HSL

hsl(60, 0.8%, 24.9%)

HSV / HSB

hsv(60, 1.6%, 25.1%)

CMYK

cmyk(0%, 0%, 1.6%, 74.9%)

LAB

lab(27.06, -0.22, 0.61)

LCH

lch(27.06, 0.65, 109.83)

OKLCH

oklch(37.1%, 0.0017, 107.35)

HWB

hwb(60, 24.7%, 74.9%)

Harmony colors

Complementary

#3f3f40

Analogous

#403f3f

#40403f

#3f403f

Triadic

#40403f

#3f4040

#403f40

Split-complementary

#40403f

#3f3f40

Tetradic

#40403f

#3f403f

#3f3f40

#403f40

Square

#40403f

#3f403f

#3f3f40

#403f3f

Shades

Color #40403f mixed toward black.

#353534

#2b2b2a

#20201f

#151515

#0b0b0a

Tints

Color #40403f mixed toward white.

#60605f

#80807e

#a0a09e

#c0c0bf

#dfdfdf

Tones

Color #40403f mixed toward gray.

#40403f

Accessibility

Aa White text on this color

10.38:1

Aa Black text on this color

2.02:1

White text reads better on this background (10.38:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#40403f · ΔE 0

Deuteranopia

#40403f · ΔE 0

Tritanopia

#403f3f · ΔE 1.1

Achromatopsia

#404040 · ΔE 0.7

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

Code

CSS

background-color: #40403f;

Tailwind (arbitrary value)

bg-[#40403f]

Related colors

Ivory #fffff0

Beige #f5f5dc

Light Goldenrod Yellow #fafad2

Light Yellow #ffffe0

Olive #808000

Yellow #ffff00

Frequently asked questions

#40403f (#40403f) is rgb(64, 64, 63) in RGB.

No, #40403f 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 #40403f, or check how it holds up for accessibility.

Generate a palette → Check contrast