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Centered Copper

#ad5915
Notes

Centered Copper (#AD5915) is a true orange with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (27°, 78%, 38%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ad5915
RGB
rgb(173, 89, 21)
HSL
hsl(27, 78%, 38%)
HWB
hwb(27 8% 32%)
OKLCH
oklch(55.5% 0.132 53.0)
HSV
hsv(27, 88%, 68%)
LAB
lab(47.09% 30.07 50.37)
LCH
lch(47.09% 58.66 59.16)
CMYK
cmyk(0%, 49%, 88%, 32%)

Etymology

Centered
adjective

Latin centrum, center — past-participle of center. As a color modifier, centered implies a saturated-and-grounded-and-balanced quality where the hue occupies the visual center of its palette without drift. Sits at the bold-and-balanced end of the grid, parallel to poised and grounded.

Copper
noun

Element Cu, atomic number 29 — one of the first metals worked by humans, smelted in Anatolia and the Levant by the fourth millennium BCE. The color refers to freshly polished copper before oxidation: a warm, slightly red metallic orange with the satin finish of a coin or a kettle. Left in air, it dulls to brown; left in salt air, it greens to verdigris. The starting color of every copper roof.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#ad5915
Original
#726405
Protanopia
#867713
Deuteranopia
#be464d
Tritanopia
#666666
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon White
4.98:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.22:1

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