Copper Color Code: #B66325, RGB, HSL & CMYK

Copper color values

HEX #B66325

RGB rgb(182, 99, 37)

HSL hsl(26, 66%, 43%)

HSV 26, 80%, 71%

HWB hwb(26 15% 29%)

CMYK 0%, 46%, 80%, 29%

Decimal 11952933

43%HSL lightness (medium-dark)

66%HSL saturation (rich)

26°Hue angle (orange)

0.190Relative luminance

CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.

What is Copper?

“Copper” is a crowd-sourced name from the XKCD Color Survey, in which participants typed names for colors they were shown. It is a popular everyday label rather than an official standard.

Its hue angle of 26° places it in the orange part of the color wheel, with 66% saturation (rich) and 43% lightness (medium-dark). It is a warm color.

Compared with the other brown colors in the Aqeeb Studio library, it is lighter than 51% of them and more saturated than 47% of them.

Its relative luminance is 0.190, which makes it a mid-tone color. That is above the 0.179 crossover point at which black and white text have equal contrast, so black text has the advantage.

Copper counts as a light color: its HSL lightness is 43% and its relative luminance is 0.190. Black text reads best on it (4.80:1 contrast).

Text contrast on Copper

WCAG contrast of white and black text on Copper
Text	Preview	Ratio	AA normal	AA large	AAA normal	AAA large
White text	Sample text	4.37:1 Limited	Fail	Pass	Fail	Fail
Black text	Sample text	4.80:1 Good	Pass	Pass	Fail	Pass

Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.

Colors that go with Copper

Complementary color

Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.

≈ Flat Blue#2578B6

Analogous colors

Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.

≈ Firebrick#B62530 ≈ Brown Yellow#B6AB25

Triadic colors

A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.

≈ Cool Green#25B663 ≈ Indigo Blue#6325B6

Split-complementary colors

Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.

≈ Light Sea Green#25B6AC ≈ Royal#252FB6

Tetradic colors

A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.

≈ Leaf Green#78B625 ≈ Flat Blue#2578B6 ≈ Indigo Blue#6325B6

Monochromatic variants

Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.

#3F220D#3F220D

#7B4319#7B4319

#B66325#B66325

#DA8749#DA8749

#E6AE84#E6AE84

A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.

Tints and shades of Copper

Lighter tints (mixed with white)

Darker shades (mixed with black)

Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.

Raw Umber#A75E09 Cinnamon#AC4F06 Burnt Sienna#B04E0F Warm Brown#964E02 Umber#B26400 Burnt Umber#A0450E Brown Orange#B96902 Clay Brown#B2713D

Where to use Copper

Card, highlight and section backgrounds with dark text (4.80:1 contrast with black)
Large headings, icons and graphics, where a 3:1 contrast ratio is enough
Packaging and craft-style layouts
Warm neutrals alongside cream and green
Borders, wood-like textures and illustrations
Earthy, natural palettes

Use Copper in CSS

:root {
  --color-copper: #B66325;
}

.element {
  color: var(--color-copper);
  background-color: #B66325;
  border: 2px solid #B66325;
}

Questions about Copper

What is the HEX code for Copper?

Copper is #B66325.

What is the RGB value of Copper?

The RGB value of Copper is 182, 99, 37: 182 red, 99 green and 37 blue on a 0–255 scale, written rgb(182, 99, 37) in CSS.

What is the HSL value of Copper?

The HSL value of Copper is 26°, 66%, 43% (hue, saturation, lightness), written hsl(26, 66%, 43%) in CSS.

What is the CMYK value of Copper?

A standard conversion gives about C 0%, M 46%, Y 80%, K 29%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.

Is Copper a light or dark color?

Copper counts as a light color: its HSL lightness is 43% and its relative luminance is 0.190. Black text reads best on it (4.80:1 contrast).

How does Copper look with white text?

White text on Copper has a contrast ratio of 4.37:1, rated Limited. It does not reach WCAG AA for normal text; use large text only.

How does Copper look with black text?

Black text on Copper has a contrast ratio of 4.80:1, rated Good. It meets WCAG AA for normal text.

What colors go well with Copper?

Flat Blue is its complementary color, and Firebrick sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.

Where can Copper be used?

It suits card, highlight and section backgrounds with dark text (4.80:1 contrast with black); large headings, icons and graphics, where a 3:1 contrast ratio is enough; packaging and craft-style layouts.

How do I use Copper in CSS?

Use color: #B66325; for text, background-color: #B66325; for fills, or define a custom property such as --color-copper: #B66325; and reuse it with var(--color-copper).

About this color page

Crowd-sourced name from the XKCD Color Survey (CC0). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.

Copper Color Code: #B66325