#660000 color
#660000 is a dark, vivid red, closest to the CSS named color maroon (#800000).
Color values
| HEX | #660000 |
| RGB | rgb(102, 0, 0) |
| HSL | hsl(0, 100%, 20%) |
| CMYK | cmyk(0%, 100%, 100%, 60%) |
| Decimal | 6684672 |
| CSS | color: #660000; |
| Android | 0xFF660000 |
| Swift | UIColor(red: 0.400, green: 0.000, blue: 0.000, alpha: 1) |
Accessibility and contrast
| White text on #660000 | 13.42:1 — AA pass · AA large pass · AAA pass |
| Black text on #660000 | 1.56:1 — AA fail · AA large fail · AAA fail |
| Recommended text color | white |
WCAG 2.1 asks for at least 4.5:1 for body text and 3:1 for large text (18 pt, or 14 pt bold).
Tints and shades of #660000
Each swatch keeps the hue and saturation of #660000 and varies only lightness — the quickest way to build a usable scale from a single brand color.
Colors that go with #660000
Harmonies generated by rotating the hue on the color wheel while holding saturation and lightness constant.
Using #660000 in code
/* CSS */
.element { color: #660000; background-color: #660000; }
.element { color: rgb(102 0 0); }
.element { color: hsl(0 100% 20%); }
/* Tailwind arbitrary value */
<div class="bg-[#660000] text-white">
/* SCSS variable */
$brand: #660000;Frequently asked questions
What color is #660000?
#660000 is a dark, vivid red. Its hue sits at 0° on the color wheel, with 100% saturation and 20% lightness.
What is #660000 in RGB?
#660000 converts to rgb(102, 0, 0) — 102 red, 0 green and 0 blue.
What is #660000 in CMYK?
Approximately cmyk(0%, 100%, 100%, 60%). Print output depends on the ICC profile of the press and paper, so treat this as a starting point rather than an exact match.
Should text on #660000 be white or black?
White gives the better contrast ratio (13.42:1 versus 1.56:1).
What is the complementary color of #660000?
#006666 — the hue directly opposite #660000 on the color wheel.