Palettes / Colors / #3139DD

#3139DD — Blue

#3139DD is a blue color we call Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

#3139DD 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 #DDD531; it also sits naturally between #3190DD and #7F31DD. 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 19% · Green 22% · Blue 87%

Cyan 78% · Magenta 74% · Yellow 0% · Key 13%

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

Previews

CSS code for #3139DD

.text { color: #3139DD; }
.background { background-color: #3139DD; }
.border { border: 3px solid #3139DD; }
.text-rgb { color: rgb(49, 57, 221); }
.text-hsl { color: hsl(237, 72%, 53%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #3139DD; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(49, 57, 221, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #3139DD; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(49, 57, 221, 0.8); }

HTML: <p style="color:#3139DD">Text here</p> · <div style="background-color:#3139DD">Div content here</div>

Shades of #3139DD

Tints of #3139DD

Tones of #3139DD

Color harmonies

Complementary — #DDD531:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #3139DD: #FFFFFF.

How #3139DD 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 #3139DD 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

← #3139DC  ·  #3139DE →

Frequently asked questions

What color is #3139DD?

#3139DD is Blue, a blue color (RGB 49, 57, 221). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #3139DD?

#3139DD is RGB 49, 57, 221 — HSL 237°, 72%, 53% — CMYK 78%, 74%, 0%, 13%.

What colors go with #3139DD?

Its complement is #DDD531; analogous partners are #3190DD and #7F31DD. It also appears in 6+ palettes in our collection.

Can I use #3139DD for text?

White text on #3139DD has a contrast ratio of 7.61:1 (passes WCAG AA); black text gives 2.76:1.