#403f37

Color #403f37

A nearly neutral, gray-leaning dark yellow.

Closest named color Charcoal #36454f · ΔE 13.3 Nearest Tailwind class stone-700 #44403b · ΔE 3

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Conversions

HEX

#403f37

RGB

rgb(64, 63, 55)

HSL

hsl(53.3, 7.6%, 23.3%)

HSV / HSB

hsv(53.3, 14.1%, 25.1%)

CMYK

cmyk(0%, 1.6%, 14.1%, 74.9%)

LAB

lab(26.51, -1.26, 5.06)

LCH

lch(26.51, 5.21, 103.98)

OKLCH

oklch(36.6%, 0.0135, 101.14)

HWB

hwb(53.3, 21.6%, 74.9%)

Harmony colors

Complementary

#373840

Analogous

#403a37

#403f37

#3c4037

Triadic

#403f37

#37403f

#3f3740

Split-complementary

#403f37

#373c40

#3a3740

Tetradic

#403f37

#384037

#373840

#3f3740

Square

#403f37

#37403a

#373840

#40373c

Shades

Color #403f37 mixed toward black.

#35342e

#2b2a25

#201f1b

#151512

#0b0a09

Tints

Color #403f37 mixed toward white.

#636155

#868473

#a5a396

#c3c2b9

#e1e0dc

Tones

Color #403f37 mixed toward gray.

#3f3e38

#3e3e38

#3e3d39

#3d3d3a

#3c3c3b

Accessibility

Aa White text on this color

10.58:1

Aa Black text on this color

1.98:1

White text reads better on this background (10.58:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#404039 · ΔE 0.8

Deuteranopia

#40403a · ΔE 1.2

Tritanopia

#403b3b · ΔE 6.4

Achromatopsia

#3f3f3f · ΔE 4.8

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

Code

CSS

background-color: #403f37;

Tailwind (arbitrary value)

bg-[#403f37]

Related colors

Khaki #f0e68c

Lemon Chiffon #fffacd

Pale Goldenrod #eee8aa

Dark Khaki #bdb76b

Gold #ffd700

Cornsilk #fff8dc

Frequently asked questions

#403f37 (#403f37) is rgb(64, 63, 55) in RGB.

No, #403f37 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 #403f37, or check how it holds up for accessibility.

Generate a palette → Check contrast