#B2512B
≈ sienna · rgb(178, 81, 43)
Color formats
HEX#B2512B
RGBrgb(178, 81, 43)
HSLhsl(17, 61%, 43%)
HSVhsv(17, 76%, 70%)
OKLCHoklch(55% 0.14 41)
CMYKcmyk(0%, 54%, 76%, 30%)
Contrast & accessibility
On white5.12:1AA pass
On black4.10:1below AA
Best text color#FFFFFF
Nearest CSS name: sienna
Copy-ready code
CSS custom properties
:root {
--sienna: #b2512b;
--sienna-rgb: 178 81 43;
--sienna-oklch: oklch(55% 0.14 41);
}The space-separated triple lets you set alpha without a second variable:
background: rgb(var(--sienna-rgb) / 40%);
Tailwind (arbitrary value)
bg-[#b2512b] text-[#b2512b] border-[#b2512b]
Shades & tints
Color harmonies
About this color
#B2512B is a color with the RGB value rgb(178, 81, 43). Its closest CSS named color is "sienna". On this page you'll find every format (HEX, RGB, HSL, HSV, OKLCH, CMYK), WCAG contrast against white and black, a full 50–950 shade scale, and complementary, analogous and triadic harmonies — each linking to its own color page.