Darkblue — #00008B
#00008B is a dark, vivid blue. It is the CSS named color darkblue.
Color values
| HEX | #00008B |
| RGB | rgb(0, 0, 139) |
| HSL | hsl(240, 100%, 27%) |
| CMYK | cmyk(100%, 100%, 0%, 45%) |
| Decimal | 139 |
| CSS | color: #00008B; |
| Android | 0xFF00008B |
| Swift | UIColor(red: 0.000, green: 0.000, blue: 0.545, alpha: 1) |
Accessibility and contrast
| White text on #00008B | 15.30:1 — AA pass · AA large pass · AAA pass |
| Black text on #00008B | 1.37:1 — 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 #00008B
Each swatch keeps the hue and saturation of #00008B and varies only lightness — the quickest way to build a usable scale from a single brand color.
Colors that go with #00008B
Harmonies generated by rotating the hue on the color wheel while holding saturation and lightness constant.
Using #00008B in code
/* CSS */
.element { color: #00008B; background-color: #00008B; }
.element { color: rgb(0 0 139); }
.element { color: hsl(240 100% 27%); }
/* Tailwind arbitrary value */
<div class="bg-[#00008B] text-white">
/* SCSS variable */
$brand: #00008B;Frequently asked questions
What color is #00008B?
#00008B is a dark, vivid blue, which CSS calls darkblue. Its hue sits at 240° on the color wheel, with 100% saturation and 27% lightness.
What is #00008B in RGB?
#00008B converts to rgb(0, 0, 139) — 0 red, 0 green and 139 blue.
What is #00008B in CMYK?
Approximately cmyk(100%, 100%, 0%, 45%). 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 #00008B be white or black?
White gives the better contrast ratio (15.30:1 versus 1.37:1).
What is the complementary color of #00008B?
#8A8A00 — the hue directly opposite #00008B on the color wheel.