#0000B3 color
#0000B3 is a dark, vivid blue, closest to the CSS named color mediumblue (#0000CD).
Color values
| HEX | #0000B3 |
| RGB | rgb(0, 0, 179) |
| HSL | hsl(240, 100%, 35%) |
| CMYK | cmyk(100%, 100%, 0%, 30%) |
| Decimal | 179 |
| CSS | color: #0000B3; |
| Android | 0xFF0000B3 |
| Swift | UIColor(red: 0.000, green: 0.000, blue: 0.702, alpha: 1) |
Accessibility and contrast
| White text on #0000B3 | 12.72:1 — AA pass · AA large pass · AAA pass |
| Black text on #0000B3 | 1.65:1 — 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 #0000B3
Each swatch keeps the hue and saturation of #0000B3 and varies only lightness — the quickest way to build a usable scale from a single brand color.
Colors that go with #0000B3
Harmonies generated by rotating the hue on the color wheel while holding saturation and lightness constant.
Using #0000B3 in code
/* CSS */
.element { color: #0000B3; background-color: #0000B3; }
.element { color: rgb(0 0 179); }
.element { color: hsl(240 100% 35%); }
/* Tailwind arbitrary value */
<div class="bg-[#0000B3] text-white">
/* SCSS variable */
$brand: #0000B3;Frequently asked questions
What color is #0000B3?
#0000B3 is a dark, vivid blue. Its hue sits at 240° on the color wheel, with 100% saturation and 35% lightness.
What is #0000B3 in RGB?
#0000B3 converts to rgb(0, 0, 179) — 0 red, 0 green and 179 blue.
What is #0000B3 in CMYK?
Approximately cmyk(100%, 100%, 0%, 30%). 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 #0000B3 be white or black?
White gives the better contrast ratio (12.72:1 versus 1.65:1).
What is the complementary color of #0000B3?
#B3B300 — the hue directly opposite #0000B3 on the color wheel.