#003366 color
#003366 is a dark, vivid blue, closest to the CSS named color midnightblue (#191970).
Color values
| HEX | #003366 |
| RGB | rgb(0, 51, 102) |
| HSL | hsl(210, 100%, 20%) |
| CMYK | cmyk(100%, 50%, 0%, 60%) |
| Decimal | 13158 |
| CSS | color: #003366; |
| Android | 0xFF003366 |
| Swift | UIColor(red: 0.000, green: 0.200, blue: 0.400, alpha: 1) |
Accessibility and contrast
| White text on #003366 | 12.61:1 — AA pass · AA large pass · AAA pass |
| Black text on #003366 | 1.67:1 — 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 #003366
Each swatch keeps the hue and saturation of #003366 and varies only lightness — the quickest way to build a usable scale from a single brand color.
Colors that go with #003366
Harmonies generated by rotating the hue on the color wheel while holding saturation and lightness constant.
Using #003366 in code
/* CSS */
.element { color: #003366; background-color: #003366; }
.element { color: rgb(0 51 102); }
.element { color: hsl(210 100% 20%); }
/* Tailwind arbitrary value */
<div class="bg-[#003366] text-white">
/* SCSS variable */
$brand: #003366;Frequently asked questions
What color is #003366?
#003366 is a dark, vivid blue. Its hue sits at 210° on the color wheel, with 100% saturation and 20% lightness.
What is #003366 in RGB?
#003366 converts to rgb(0, 51, 102) — 0 red, 51 green and 102 blue.
What is #003366 in CMYK?
Approximately cmyk(100%, 50%, 0%, 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 #003366 be white or black?
White gives the better contrast ratio (12.61:1 versus 1.67:1).
What is the complementary color of #003366?
#663300 — the hue directly opposite #003366 on the color wheel.