#404040 color code insights

All the conversions, harmonies, and accessibility checks you need to design with confidence.

RGB:rgb(64, 64, 64)

HSL:hsl(0, 0%, 25%)

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HEX

#404040

RGB

64, 64, 64

HSL

0°, 0%, 25%

HSV

0°, 0%, 25%

CMYK

0%, 0%, 0%, 75%

Color Conversion

Generate values across multiple color models in one place.

HEX

#404040

≈ Steel Blue

Tints & shades

Explore how #404040 behaves when you mix it with white or black. These swatches are perfect for hover states, shadows, and backgrounds.

Hover to copy any hex value and reuse it across your interface.

Shades

0–100%

0%#404040

10%#393939

20%#333333

30%#2D2D2D

40%#262626

50%#202020

60%#1A1A1A

70%#131313

80%#0D0D0D

90%#060606

100%#000000

Tints

0–100%

0%#404040

10%#535353

20%#666666

30%#797979

40%#8C8C8C

50%#9F9F9F

60%#B3B3B3

70%#C6C6C6

80%#D9D9D9

90%#ECECEC

100%#FFFFFF

Color harmonies

Build balanced palettes instantly with harmonies generated from #404040.

Click any swatch to open its own detail page and keep exploring.

Complementary

Opposite hues that create impact and bold contrast.

#404040

Analogous

Neighboring hues for natural, fluid gradients.

#404040

Triadic

Three evenly spaced hues for playful balance.

#404040

Tetradic

Two complementary pairs that deliver rich variety.

#404040

Monochromatic

Lighter and darker siblings inside the same hue family.

Accessibility contrast

Check how readable #404040 is with common text colors so every visitor enjoys a clear experience.

Use AA as the baseline for body copy and AAA for premium accessibility.

Sample text on black text

Text color#000000

Background#404040

Contrast ratio2.03:1

WCAG levelFail

Sample text on white text

Text color#FFFFFF

Background#404040

Contrast ratio10.37:1

WCAG levelAAA

Recommended text preview

Text color#FFFFFF

Background#404040

Contrast ratio10.37:1

WCAG levelAAA

Technical Formats

Unlock pro color spaces like XYZ, LAB, CMYK variants, and export-ready profiles.

Practical Formats

Get print simulations, LED mappings, and developer-ready byte orders.

Color Analysis

Dive into spectral data, dominance reports, and advanced analytics.

Blindness Simulator

Preview how #404040 appears across common color-vision deficiencies.

Creative Aspects

Explore seasonal associations, emotional cues, and natural occurrences.

Design guidance

Balance

Treat #404040 as a highlight. Pair it with neutrals and one supporting hue to avoid visual overload.

Contrast

Test combinations with real content. Higher contrast improves scanning, readability, and conversions.

Harmony

Use lighter tints for surfaces, the base color for primaries, and darker shades for hover or pressed states.

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