Palettes / Colors / #183AFB

#183AFB — Vivid Blue

#183AFB is a blue color we call Vivid Blue, closest to the named color Blue (#0000FF). It belongs to the blue family.

#183AFB 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 #FBD918; it also sits naturally between #18ACFB and #6818FB. 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 9% · Green 23% · Blue 98%

Cyan 90% · Magenta 77% · Yellow 0% · Key 2%

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

Previews

CSS code for #183AFB

.text { color: #183AFB; }
.background { background-color: #183AFB; }
.border { border: 3px solid #183AFB; }
.text-rgb { color: rgb(24, 58, 251); }
.text-hsl { color: hsl(231, 97%, 54%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #183AFB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(24, 58, 251, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #183AFB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(24, 58, 251, 0.8); }

HTML: <p style="color:#183AFB">Text here</p> · <div style="background-color:#183AFB">Div content here</div>

Shades of #183AFB

Tints of #183AFB

Tones of #183AFB

Color harmonies

Complementary — #FBD918:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #183AFB: #FFFFFF.

How #183AFB 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 #183AFB 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

← #183AFA  ·  #183AFC →

Frequently asked questions

What color is #183AFB?

#183AFB is Vivid Blue, a blue color (RGB 24, 58, 251). Its closest standard named color is Blue.

What is the RGB and HSL of #183AFB?

#183AFB is RGB 24, 58, 251 — HSL 231°, 97%, 54% — CMYK 90%, 77%, 0%, 2%.

What colors go with #183AFB?

Its complement is #FBD918; analogous partners are #18ACFB and #6818FB. It also appears in 6+ palettes in our collection.

Can I use #183AFB for text?

White text on #183AFB has a contrast ratio of 6.91:1 (passes WCAG AA); black text gives 3.04:1.