#660000 color codes
- HEX
- #660000
- HEX8
- #660000FF
- HEX8 (Android)
- #FF660000
- RGB
- rgb(102, 0, 0)
- RGB (%)
- 40%, 0%, 0%
- HSL
- hsl(0, 100%, 20%)
- HSV / HSB
- hsv(0, 100%, 40%)
- CMYK
- cmyk(0%, 100%, 100%, 60%)
- OKLCH
- oklch(0.3204 0.1315 29.23)
- OKLCH (%)
- oklch(32.04% 0.1315 29.23)
- Decimal
- 6684672
What color is #660000?
#660000 sits at 32% lightness and 0.1315 chroma in OKLCH, hue 29.23°. Its nearest named color is Maroon.
Shades and tints of #660000
Tints
Shades
Tones
#660000 color harmonies
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Square
Monochromatic
Using #660000 in CSS
.text { color: #660000; }
.background { background-color: #660000; }
.border { border: 2px solid #660000; }
/* Modern, perceptually uniform */
.text { color: oklch(0.3204 0.1315 29.23); }
/* #660000 at 50% transparency */
.overlay { background-color: #66000080; }Is #660000 accessible?
#660000 on white text scores 13.42:1; on black text it scores 1.56:1. White text passes WCAG AAA on #660000. Recommended text color on a #660000 background: white.
A 1.56:1 vs black
A 13.42:1 vs white
- AA normal ≥ 4.5 Pass
- AA large ≥ 3 Pass
- AAA normal ≥ 7 Pass
- AAA large ≥ 4.5 Pass
Recommended text color: white
CSS
contrast-color() contrast-color(#660000) → white APCA Lc experimental 101.3 Lc · body text — preferred (white text)
WCAG 2.1 AA/AAA is the compliance floor; APCA is an optional readability metric.
Related colors
See more in the brown family on the colors hub.
Frequently asked questions
- What color is #660000?
- #660000 is closest to Maroon. In RGB it is rgb(102, 0, 0), and in HSL hsl(0, 100%, 20%).
- What is #660000 in RGB?
- #660000 converts to rgb(102, 0, 0) — red 102, green 0, blue 0.
- What text color is readable on #660000?
- White text — it has the higher contrast ratio (13.42:1) against #660000. White text passes WCAG AAA on #660000.