Information about #151515 color
Basic facts about this digital color
The color #151515 reads as a softly muted ink-dark neutral and keeps to the darkest edge of the palette. Expect to see shades like this in dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is almost identical to Chinese Black (#141414). Slightly further away sit Standard-Bearer (#141216) and All Black (#181818).
Under the hood all three RGB channels are equal (21 each), placing #151515 exactly on the neutral axis of the color space. Accessibility-wise, white text works best on #151515: 18.3:1 contrast (passing WCAG AAA) versus 1.1:1 for black. For print, note the heavy black component (K:92) — ink coverage matters with tones this deep. This shade is reserved in the Register and is not available for naming.
#151515 color variations
View this color variations of tints, shades, tones and hues.
#151515 color tints
Tints look brighter, pastel, and less intense.
#151515 color shades
Shades look darker, richer, and more solid.
#151515 color tones
Tones looks more sophisticated and complex than base colors.
Why this page shows fewer blocks
#151515 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 #151515 color
View adjacent and very similar colors.
Nearest named colors to #151515
The closest officially registered color names in the Register, ordered by similarity.
#141414
#141216
#181818
#181A18
#1C1816
#1B1811
#18130E
#1B1A16
#16161D
#1A1110
#11171D
#111D17
#151515 color backgrounds & wallpapers
Download color wallpaper / background for your Desktop PC, Tablet or Mobile phone.
Conversions between color systems and etc.
- HEX#151515
- RGB21, 21, 21
- CMYK0, 0, 0, 92
- CSSrgb(21, 21, 21)
- HSL0°, 0%, 8%
- HSL Precise0°, 0%, 8.235%
- HSV0°, 0%, 8%
- HSB0°, 0%, 8%
- Normalized R (0.0–1.0)0.082
- Normalized G (0.0–1.0)0.082
- Normalized B (0.0–1.0)0.082
- GLSLvec3(0.082, 0.082, 0.082)
- GLSL with alphavec4(0.082, 0.082, 0.082, 1.000)
- HLSL / Metalfloat3(0.082, 0.082, 0.082)
- Percentage of Red in RGB8.2%
- Percentage of Green in RGB8.2%
- Percentage of Blue in RGB8.2%
- Color FamilyGreyscale
- Saturation FamilyDesaturated
- Lightness FamilyVery Dark
- HEX ID151515
- DECIMAL ID1381653
- Name LengthThis color has no name
- Seen by search & AI crawlers42 times
- Counting from2025-01-01
