#4040BF color
#4040BF is a medium, moderately saturated blue, closest to the CSS named color darkslateblue (#483D8B).
Color values
| HEX | #4040BF |
| RGB | rgb(64, 64, 191) |
| HSL | hsl(240, 50%, 50%) |
| CMYK | cmyk(66%, 66%, 0%, 25%) |
| Decimal | 4210879 |
| CSS | color: #4040BF; |
| Android | 0xFF4040BF |
| Swift | UIColor(red: 0.251, green: 0.251, blue: 0.749, alpha: 1) |
Accessibility and contrast
| White text on #4040BF | 7.77:1 — AA pass · AA large pass · AAA pass |
| Black text on #4040BF | 2.70:1 — 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 #4040BF
Each swatch keeps the hue and saturation of #4040BF and varies only lightness — the quickest way to build a usable scale from a single brand color.
Colors that go with #4040BF
Harmonies generated by rotating the hue on the color wheel while holding saturation and lightness constant.
Using #4040BF in code
/* CSS */
.element { color: #4040BF; background-color: #4040BF; }
.element { color: rgb(64 64 191); }
.element { color: hsl(240 50% 50%); }
/* Tailwind arbitrary value */
<div class="bg-[#4040BF] text-white">
/* SCSS variable */
$brand: #4040BF;Frequently asked questions
What color is #4040BF?
#4040BF is a medium, moderately saturated blue. Its hue sits at 240° on the color wheel, with 50% saturation and 50% lightness.
What is #4040BF in RGB?
#4040BF converts to rgb(64, 64, 191) — 64 red, 64 green and 191 blue.
What is #4040BF in CMYK?
Approximately cmyk(66%, 66%, 0%, 25%). 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 #4040BF be white or black?
White gives the better contrast ratio (7.77:1 versus 2.70:1).
What is the complementary color of #4040BF?
#BFBF40 — the hue directly opposite #4040BF on the color wheel.