Palettes / Colors / #375EEB

#375EEB — Vivid Blue

#375EEB is a blue color we call Vivid Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

Color name

Closest CSS keyword: royalblue (#4169E1) — not an exact match. CSS royalblue gives you #4169E1, a different color; use #375EEB 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.

#375EEB 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 #EBC437; it also sits naturally between #37B8EB and #6A37EB. 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 22% · Green 37% · Blue 92%

Cyan 77% · Magenta 60% · Yellow 0% · Key 8%

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

Previews

CSS code for #375EEB

.text { color: #375EEB; }
.background { background-color: #375EEB; }
.border { border: 3px solid #375EEB; }
.text-rgb { color: rgb(55, 94, 235); }
.text-hsl { color: hsl(227, 82%, 57%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #375EEB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(55, 94, 235, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #375EEB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(55, 94, 235, 0.8); }

HTML: <p style="color:#375EEB">Text here</p> · <div style="background-color:#375EEB">Div content here</div>

Shades of #375EEB

Tints of #375EEB

Tones of #375EEB

Color harmonies

Complementary — #EBC437:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #375EEB: #FFFFFF.

Semi-transparent (opacity) text on #375EEB

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 #375EEB 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 #375EEB 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

← #375EEA  ·  #375EEC →

Frequently asked questions

What color is #375EEB?

#375EEB is Vivid Blue, a blue color (RGB 55, 94, 235). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #375EEB?

#375EEB is RGB 55, 94, 235 — HSL 227°, 82%, 57% — CMYK 77%, 60%, 0%, 8%.

What colors go with #375EEB?

Its complement is #EBC437; analogous partners are #37B8EB and #6A37EB. It also appears in 6+ palettes in our collection.

Can I use #375EEB for text?

White text on #375EEB has a contrast ratio of 5.30:1 (passes WCAG AA); black text gives 3.96:1.