A very dark, neutral grey named for the mineral.
Colours in photographs vary with lighting, material, camera processing and screen calibration — the named colours below are visual approximations, not exact measurements.

Thin metal frames generally carry the least visual weight of any frame style, which is why the frame's own metal tone (cool pewter-grey here) tends to matter more for coordination than the frame shape itself.
This photo is composed over a page of printed text specifically to show the lens's gradient effect — the frame's own colour is a small part of the frame, reviewed separately from the text background."Progressive Trifocal Lens" by Stanistani, CC BY-SA 3.0, via Wikimedia CommonsA truly flat, single-value monochrome outfit can visually blur into one shapeless mass, since the eye relies on lightness differences to read where one garment ends and another begins — a matte black frame photographed here shows how even 'one colour' still shows real tonal variation once light and material interact with it.
In practice: When building a monochrome outfit, vary fabric finish (matte versus glossy) or fine value differences between pieces so the outfit still reads as having visible structure, not one flat block of colour.
Subtle, bold, analogous, complementary and neutral options — established design convention, not a guarantee of visual success in every context.
Complementary
Opposite hues (180° apart) for maximum hue contrast.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast.
Split-complementary
The two hues bracketing the complement, for contrast with less tension.
Split-complementary
The two hues bracketing the complement, for contrast with less tension.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
For an accessible, low-contrast-risk pairing, monochromatic (same-hue) combinations are usually the safest starting point — see the harmonies above.
Name origin
Inherited from the neutral hue family, not specifically documented about this exact shade — see methodology.
Calculated directional adjustments. Some directions converge on the same result from this starting colour — shown as one merged card with an explanation, not repeated duplicates. Generated shades link to a curated profile only when one is close enough.
Lighter
Lightness increased
Darker
Lightness decreased
Warmer & Cooler & Greener & Bluer & Redder & Yellower & More muted
Hue rotated toward warm (red/orange) From this starting colour, moving warmer and cooler and greener and bluer and redder and yellower and more muted converges on the same calculated result. This is close to the source colour itself — there is limited room left to move warmer from here.
More saturated
Saturation increased
CMYK is an approximate device conversion, not a calibrated print value — see methodology.
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Common design-industry reference value for the named colour.
vs. white text
11.73:1 — AAA
vs. black text
1.79:1 — fails
Confidence: medium · Qualification: identity_only, technically_qualified, curated_profile_eligible, search_index_eligible, comparison_eligible
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