Byzantium

Uses & contexts

Nearest named colours, and how they differ

• Purple is the closest, at ΔE00 7.8 from byzantium: 26 points more saturated and 6° round towards blue. That is clearly different, though many people would use one name for both.

• Tyrian Purple is next, at ΔE00 9.4 from byzantium: 8 points darker and 18° round towards red. That is clearly different, though many people would use one name for both.

• Eggplant is next, at ΔE00 11.5 from byzantium: 2 points lighter, 25 points less saturated and 12° round towards red. That is clearly different, though many people would use one name for both.

• Indigo is next, at ΔE00 14.6 from byzantium: 9 points darker, 31 points more saturated and 20° round towards blue. That is a different colour at a glance.

Distances are CIEDE2000 between catalogue reference values; lightness and saturation are CIELAB L* and C*. How to read a ΔE figure · Measure any two colours

Using byzantium in a real space

Worked out from this colour’s own measurements — its lightness, saturation and undertone — rather than written for it. That is why the guidance differs from one colour to the next even when the two look similar.

What role it can play

This works across a range of sizes. At chroma 43 it is assertive enough to register on a small object and restrained enough not to dominate a wall.

• Walls and large surfaces

  workable

  Chroma 43 is above the usual comfort level for walls and large surfaces, so expect it to take charge. That is a legitimate choice in a room that wants a subject. Walls set the room's baseline, so this is the decision everything else answers to. At L*29 it also absorbs a good deal of the light in the room, so plan the lighting alongside it rather than afterwards.

• Secondary surfaces

  strong

  Chroma 43 sits inside the range secondary surfaces carry without taking over the room.

• Furniture

  strong

  Chroma 43 sits inside the range furniture carry without taking over the room.

• Rugs, curtains and bedding

  strong

  Chroma 43 sits inside the range rugs, curtains and bedding carry without taking over the room.

• Trim and joinery

  strong

  Chroma 43 sits inside the range trim and joinery carry without taking over the room.

• Accents and small objects

  strong

  Chroma 43 is exactly what an accent is for. The saturation that makes this difficult across a wall is the reason it works on a cushion, a door or a single chair.

How it behaves under different lightresilient

Under warm bulbs

With almost no hue of its own, this mostly reports the colour of the light. Under warm bulbs it will read warm — which is not the colour changing but the colour being honest.

Under cool bulbs

Near-neutral under any source, so a cool bulb will simply make it read cool.

In daylight

Deep colours hold their identity in daylight better than pale ones, because there is more of the range left to work in. This will look most like itself in good indirect light.

In a dim room

At low light levels the eye's colour discrimination genuinely falls and deep colours converge toward each other. This will read as "dark" rather than as its own colour in a dim room unless it is lit.

Compared with the sample card

Already deep, so there is little further to fall — but on a large matte surface it will absorb enough light to look flatter than the sample.

What colour temperature actually means · Why two bulbs at the same rating can differ

With wood

• Oak · Pine · Plywood · Light wood (ash, birch, beech)

  works well

  Shares the neutral bias of Oak, Pine, Plywood and Light wood (ash, birch, beech), so they agree about the temperature of the room, and 37–56 points of lightness keep them readable as separate from this colour.

• Walnut · Dark wood · Reddish wood (mahogany, cherry, teak)

  works well

  Shares the neutral bias of Walnut, Dark wood and Reddish wood (mahogany, cherry, teak) and sits within 1–7 points of them in lightness, so expect a quiet, tonal relationship rather than a contrast.

The amount of timber matters as much as the tone: one piece is an accent, a floor plus joinery is the room’s dominant colour. More on working with wood tones

With metal fittings

• Brass · Gold-tone · Chrome · Stainless steel · Black metal · Copper

  works well

  Shares the neutral bias of Brass, Gold-tone, Chrome, Stainless steel, Black metal and Copper, so they agree about the temperature of the room, and 22–51 points of lightness keep them readable as separate from this colour.

Metal carries more attention than its area suggests, so repetition matters more than the exact finish. More on metals and mixing them

Where it can go wrong

• May dominate a small or dim room. At L*29 and chroma 43 it absorbs light and holds attention at the same time, which is a lot to ask of a space that has little of either.

Lighter, darker & directional variants

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.