Palettes / Colors / #2811BB

#2811BB — Vivid Blue

#2811BB is a blue color we call Vivid Blue, closest to the named color DarkBlue (#00008B). It belongs to the blue family.

Color name

Closest CSS keyword: darkblue (#00008B) — not an exact match. CSS darkblue gives you #00008B, a different color; use #2811BB when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#2811BB is a cool blue color associated with trust, calm and professionalism. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #A4BB11; it also sits naturally between #114FBB and #7D11BB. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 16% · Green 7% · Blue 73%

Cyan 79% · Magenta 91% · Yellow 0% · Key 27%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #2811BB

.text { color: #2811BB; }
.background { background-color: #2811BB; }
.border { border: 3px solid #2811BB; }
.text-rgb { color: rgb(40, 17, 187); }
.text-hsl { color: hsl(248, 83%, 40%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #2811BB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(40, 17, 187, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #2811BB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(40, 17, 187, 0.8); }

HTML: <p style="color:#2811BB">Text here</p> · <div style="background-color:#2811BB">Div content here</div>

Shades of #2811BB

Tints of #2811BB

Tones of #2811BB

Color harmonies

Complementary — #A4BB11:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #2811BB: #FFFFFF.

Semi-transparent (opacity) text on #2811BB

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #2811BB looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #2811BB rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #2811BA  ·  #2811BC →

Frequently asked questions

What color is #2811BB?

#2811BB is Vivid Blue, a blue color (RGB 40, 17, 187). Its closest standard named color is DarkBlue.

What is the RGB and HSL of #2811BB?

#2811BB is RGB 40, 17, 187 — HSL 248°, 83%, 40% — CMYK 79%, 91%, 0%, 27%.

What colors go with #2811BB?

Its complement is #A4BB11; analogous partners are #114FBB and #7D11BB. It also appears in 6+ palettes in our collection.

Can I use #2811BB for text?

White text on #2811BB has a contrast ratio of 11.12:1 (passes WCAG AA); black text gives 1.89:1.