Information about Nero color
Basic facts about this digital color
The color #252525 reads as a softly muted neutral grey and stays on the darker end of the scale. Designers typically reach for tones like this for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is almost identical to Plock Gray (#232224). Slightly further away sit Raisin Black (#242124) and Black Chestnut Oak (#252321).
Technically, #252525 is a perfectly balanced RGB mix — red, green and blue all sit at 37, which is what makes it a true neutral. Accessibility-wise, white text works best on #252525: 15.3:1 contrast (passing WCAG AAA) versus 1.4:1 for black. On paper it relies strongly on black ink (K:85), so proof dark layouts before a large print run. The name "Nero" is officially recorded for this exact shade in The Official Register of Color Names.
Nero color variations
View this color variations of tints, shades, tones and hues.
Nero color tints
Tints look brighter, pastel, and less intense.
Nero color shades
Shades look darker, richer, and more solid.
Nero color tones
Tones looks more sophisticated and complex than base colors.
Why this page shows fewer blocks
Nero belongs to the Greyscale Color Family, and greyscale colors have no hue. Hue is an angle on the color wheel, and that angle only exists when a color leans toward one primary more than the others. Here all three channels are equal (R = G = B), so there is nothing to lean and no angle to measure.
Everything built on rotating that angle therefore has nothing to rotate. A complementary color is the hue 180° away — for a grey, that is the same grey. The same goes for analogous, triadic, tetradic and square harmonies. Rather than show seven identical swatches, the register leaves the Hues variation strip and the whole Harmonies section out.
What remains is everything that depends on lightness rather than hue. Tints, shades and tones still work, because they move the color up and down the scale instead of around the wheel. So do the nearest named colors, the conversions and the adjacent color codes.
How the register classifies colors · All greyscale colors in the register
Alternatives to Nero color
View adjacent and very similar colors.
Nearest named colors to Nero
The closest officially registered color names in the Register, ordered by similarity.
#232224
#242124
#252321
#2A2525
#2A2725
#292421
#24252B
#212121
#27221F
#2A2922
#26211F
#26272C
Nero color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#252525
- RGB37, 37, 37
- CMYK0, 0, 0, 85
- CSSrgb(37, 37, 37)
- HSL0°, 0%, 15%
- HSL Precise0°, 0%, 14.51%
- HSV0°, 0%, 15%
- HSB0°, 0%, 15%
- Normalized R (0.0–1.0)0.145
- Normalized G (0.0–1.0)0.145
- Normalized B (0.0–1.0)0.145
- GLSLvec3(0.145, 0.145, 0.145)
- GLSL with alphavec4(0.145, 0.145, 0.145, 1.000)
- HLSL / Metalfloat3(0.145, 0.145, 0.145)
- Percentage of Red in RGB14.5%
- Percentage of Green in RGB14.5%
- Percentage of Blue in RGB14.5%
- Color FamilyGreyscale
- Saturation FamilyDesaturated
- Lightness FamilyDark
- HEX ID252525
- DECIMAL ID2434341
- Name Length4
- This page visited13 times
- Counting from2025-01-01
