A blue-green named for the natural patina that forms on weathered copper and bronze.
Similar to
Colours in photographs vary with lighting, material, camera processing and screen calibration — the named colours below are visual approximations, not exact measurements.

The radiating fibrous structure visible here is the iris's real anatomy — the yellow-green flecking near the pupil and the blue-teal further out are two genuinely different regions, not a single uniform colour.
Extreme close-up eye photography like this is very often colour-enhanced or saturation-boosted in editing — treat this as an illustrative, vivid example of blue-green iris structure, not an unedited, exact colour reference. A camera can never capture eye colour perfectly neutrally in any case, since white balance and exposure both shift what's recorded.Photo: “Eye I” by Thomas Tolkien, CC BY 2.0, via Wikimedia Commons.
Calculated from Verdigris’s position on the HSL wheel (hue 177°, saturation 46%, lightness 48%). Colour-wheel pairings are a design convention, not a guarantee: check any pairing in the light and material you will use it in.
Complementary
Opposite hues (180° apart) for maximum hue contrast: hue 177° → 357° on the HSL wheel.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel: hue 177° → 147° on the HSL wheel.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel: hue 177° → 207° on the HSL wheel.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast: hue 177° → 297° on the HSL wheel.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast: hue 177° → 57° on the HSL wheel.
Split-complementary
The two hues bracketing the complement, for contrast with less tension: hue 177° → 327° on the HSL wheel.
Split-complementary
The two hues bracketing the complement, for contrast with less tension: hue 177° → 27° on the HSL wheel.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette: hue 177° → 267° on the HSL wheel.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette: hue 177° → 357° on the HSL wheel.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette: hue 177° → 87° on the HSL wheel.
Monochromatic
Hue held at 177°, lightness 20% against this colour's 48%.
Monochromatic
Hue held at 177°, lightness 40% against this colour's 48%.
Monochromatic
Hue held at 177°, lightness 60% against this colour's 48%.
Monochromatic
Hue held at 177°, lightness 80% against this colour's 48%.
Turquoise is the closest, at ΔE00 11.7 from verdigris: 14 points lighter, 11 points more saturated and 7° round towards green. That is clearly different, though many people would use one name for both.
Cobalt Green is next, at ΔE00 14.7 from verdigris: 10 points darker, 5 points more saturated and 30° round towards green. That is a different colour at a glance.
Pewter is next, at ΔE00 15.5 from verdigris: 25 points less saturated. That is a different colour at a glance.
Sky Blue is next, at ΔE00 17.0 from verdigris: 12 points lighter, 7 points less saturated and 43° 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
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.
This works across a range of sizes. At chroma 33 it is assertive enough to register on a small object and restrained enough not to dominate a wall.
Chroma 33 sits inside the range walls and large surfaces carry without taking over the room.
Chroma 33 sits inside the range secondary surfaces carry without taking over the room.
Chroma 33 sits inside the range furniture carry without taking over the room.
Chroma 33 sits inside the range rugs, curtains and bedding carry without taking over the room.
Chroma 33 sits inside the range trim and joinery carry without taking over the room.
Chroma 33 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.
Chroma 33 is strong enough to register and restrained enough to repeat. Two or three appearances read as intentional where one reads as an orphan.
How to distribute colour across a roomWhat colour temperature actually means · Why two bulbs at the same rating can differ
Opposite in undertone to Walnut, Dark wood and Reddish wood (mahogany, cherry, teak), but 39–45 points apart in lightness or far enough round the hue circle that the difference reads as deliberate contrast rather than as a clash.
Opposed in undertone to Oak, Pine, Plywood and Light wood (ash, birch, beech) with only 1–19 points of lightness to explain the difference, which is the combination the eye most often reads as an error.
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
Shares the cool bias of Black metal, so they agree about the temperature of the room, and 60 points of lightness keep it readable as separate from this colour.
Shares the cool bias of Brass, Gold-tone, Chrome, Stainless steel and Copper and sits within 1–14 points of them in lightness, so expect a quiet, tonal relationship rather than a contrast.
Metal carries more attention than its area suggests, so repetition matters more than the exact finish. More on metals and mixing them
History
1 documented association applies to the cyan family as a whole rather than to this shade: what is documented about cyan.
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 & Greener & Redder & Yellower
Hue rotated toward warm (red/orange) From this starting colour, moving warmer and greener and redder and yellower converges on the same calculated result.
Cooler & Bluer
Hue rotated toward cool (blue) From this starting colour, moving cooler and bluer converges on the same calculated result.
No curated profile yet
More muted
Saturation softened
More saturated
Saturation increased
Approximate, from each printing condition’s published aim values; a printer’s own profile is the final word. See the full print gamut check.
CMYK is an approximate device conversion, not a calibrated print value — see methodology.
Convert this colour to another format →
Common pigment-history reference value for the named colour.
vs. white text
2.53:1 — fails
vs. black text
8.30:1 — AAA
Confidence: medium · Qualification: identity_only, technically_qualified, curated_profile_eligible, search_index_eligible, comparison_eligible
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