Palettes / Colors / #372CD3

#372CD3 — Blue

#372CD3 is a blue color we call 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 #372CD3 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.

#372CD3 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 #C7D22D; it also sits naturally between #2D74D2 and #8B2DD2. 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 17% · Blue 83%

Cyan 74% · Magenta 79% · Yellow 0% · Key 17%

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

Previews

CSS code for #372CD3

.text { color: #372CD3; }
.background { background-color: #372CD3; }
.border { border: 3px solid #372CD3; }
.text-rgb { color: rgb(55, 44, 211); }
.text-hsl { color: hsl(244, 65%, 50%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #372CD3; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(55, 44, 211, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #372CD3; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(55, 44, 211, 0.8); }

HTML: <p style="color:#372CD3">Text here</p> · <div style="background-color:#372CD3">Div content here</div>

Shades of #372CD3

Tints of #372CD3

Tones of #372CD3

Color harmonies

Complementary — #C7D22D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #372CD3: #FFFFFF.

Semi-transparent (opacity) text on #372CD3

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 #372CD3 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 #372CD3 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

← #372CD2  ·  #372CD4 →

Frequently asked questions

What color is #372CD3?

#372CD3 is Blue, a blue color (RGB 55, 44, 211). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #372CD3?

#372CD3 is RGB 55, 44, 211 — HSL 244°, 65%, 50% — CMYK 74%, 79%, 0%, 17%.

What colors go with #372CD3?

Its complement is #C7D22D; analogous partners are #2D74D2 and #8B2DD2. It also appears in 6+ palettes in our collection.

Can I use #372CD3 for text?

White text on #372CD3 has a contrast ratio of 8.52:1 (passes WCAG AA); black text gives 2.46:1.