#6366F1 color
#6366F1 is a light, vivid blue, closest to the CSS named color mediumslateblue (#7B68EE).
Color values
| HEX | #6366F1 |
| RGB | rgb(99, 102, 241) |
| HSL | hsl(239, 84%, 67%) |
| CMYK | cmyk(59%, 58%, 0%, 5%) |
| Decimal | 6514417 |
| CSS | color: #6366F1; |
| Android | 0xFF6366F1 |
| Swift | UIColor(red: 0.388, green: 0.400, blue: 0.945, alpha: 1) |
Accessibility and contrast
| White text on #6366F1 | 4.47:1 — AA fail · AA large pass · AAA fail |
| Black text on #6366F1 | 4.70:1 — AA pass · AA large pass · AAA fail |
| Recommended text color | black |
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 #6366F1
Each swatch keeps the hue and saturation of #6366F1 and varies only lightness — the quickest way to build a usable scale from a single brand color.
Colors that go with #6366F1
Harmonies generated by rotating the hue on the color wheel while holding saturation and lightness constant.
Using #6366F1 in code
/* CSS */
.element { color: #6366F1; background-color: #6366F1; }
.element { color: rgb(99 102 241); }
.element { color: hsl(239 84% 67%); }
/* Tailwind arbitrary value */
<div class="bg-[#6366F1] text-black">
/* SCSS variable */
$brand: #6366F1;Frequently asked questions
What color is #6366F1?
#6366F1 is a light, vivid blue. Its hue sits at 239° on the color wheel, with 84% saturation and 67% lightness.
What is #6366F1 in RGB?
#6366F1 converts to rgb(99, 102, 241) — 99 red, 102 green and 241 blue.
What is #6366F1 in CMYK?
Approximately cmyk(59%, 58%, 0%, 5%). 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 #6366F1 be white or black?
Black gives the better contrast ratio (4.70:1 versus 4.47:1).
What is the complementary color of #6366F1?
#F2EF64 — the hue directly opposite #6366F1 on the color wheel.