#663399 color codes
- HEX
- #663399
- HEX8
- #663399FF
- HEX8 (Android)
- #FF663399
- RGB
- rgb(102, 51, 153)
- RGB (%)
- 40%, 20%, 60%
- HSL
- hsl(270, 50%, 40%)
- HSV / HSB
- hsv(270, 67%, 60%)
- CMYK
- cmyk(33%, 67%, 0%, 40%)
- OKLCH
- oklch(0.4403 0.1603 303.37)
- OKLCH (%)
- oklch(44.03% 0.1603 303.37)
- Decimal
- 6697881
What color is #663399?
#663399 sits at 44% lightness and 0.1603 chroma in OKLCH, hue 303.37°. Its nearest named color is RebeccaPurple (an exact match).
Shades and tints of #663399
Tints
Shades
Tones
#663399 color harmonies
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Square
Monochromatic
Using #663399 in CSS
.text { color: #663399; }
.background { background-color: #663399; }
.border { border: 2px solid #663399; }
/* Modern, perceptually uniform */
.text { color: oklch(0.4403 0.1603 303.37); }
/* #663399 at 50% transparency */
.overlay { background-color: #66339980; }Is #663399 accessible?
#663399 on white text scores 8.41:1; on black text it scores 2.50:1. White text passes WCAG AAA on #663399. Recommended text color on a #663399 background: white.
A 2.5:1 vs black
A 8.41:1 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(#663399) → white APCA Lc experimental 93 Lc · body text — preferred (white text)
WCAG 2.1 AA/AAA is the compliance floor; APCA is an optional readability metric.
Related colors
Nearest featured color: Purple #800080. See more in the purple family on the colors hub.
Frequently asked questions
- What color is #663399?
- #663399 is RebeccaPurple. In RGB it is rgb(102, 51, 153), and in HSL hsl(270, 50%, 40%).
- What is #663399 in RGB?
- #663399 converts to rgb(102, 51, 153) — red 102, green 51, blue 153.
- What text color is readable on #663399?
- White text — it has the higher contrast ratio (8.41:1) against #663399. White text passes WCAG AAA on #663399.