Palettes / Colors / #288DEC

#288DEC — Vivid Blue

#288DEC is a blue color we call Vivid Blue, closest to the named color DodgerBlue (#1E90FF). It belongs to the blue family.

Color name

Closest CSS keyword: dodgerblue (#1E90FF) — not an exact match. CSS dodgerblue gives you #1E90FF, a different color; use #288DEC 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.

#288DEC 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 #EC8627; it also sits naturally between #27ECE9 and #272AEC. 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 55% · Blue 93%

Cyan 83% · Magenta 40% · Yellow 0% · Key 7%

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

Previews

CSS code for #288DEC

.text { color: #288DEC; }
.background { background-color: #288DEC; }
.border { border: 3px solid #288DEC; }
.text-rgb { color: rgb(40, 141, 236); }
.text-hsl { color: hsl(209, 84%, 54%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #288DEC; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(40, 141, 236, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #288DEC; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(40, 141, 236, 0.8); }

HTML: <p style="color:#288DEC">Text here</p> · <div style="background-color:#288DEC">Div content here</div>

Shades of #288DEC

Tints of #288DEC

Tones of #288DEC

Color harmonies

Complementary — #EC8627:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #288DEC: #000000.

Semi-transparent (opacity) text on #288DEC

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 #288DEC 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 #288DEC 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

← #288DEB  ·  #288DED →

Frequently asked questions

What color is #288DEC?

#288DEC is Vivid Blue, a blue color (RGB 40, 141, 236). Its closest standard named color is DodgerBlue.

What is the RGB and HSL of #288DEC?

#288DEC is RGB 40, 141, 236 — HSL 209°, 84%, 54% — CMYK 83%, 40%, 0%, 7%.

What colors go with #288DEC?

Its complement is #EC8627; analogous partners are #27ECE9 and #272AEC. It also appears in 6+ palettes in our collection.

Can I use #288DEC for text?

Black text on #288DEC has a contrast ratio of 6.11:1 (passes WCAG AA); white text gives 3.44:1.