Palettes / Colors / #2F37CA

#2F37CA — Blue

#2F37CA 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 #2F37CA 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.

#2F37CA 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 #CAC32F; it also sits naturally between #2F85CA and #752FCA. 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 18% · Green 22% · Blue 79%

Cyan 77% · Magenta 73% · Yellow 0% · Key 21%

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

Previews

CSS code for #2F37CA

.text { color: #2F37CA; }
.background { background-color: #2F37CA; }
.border { border: 3px solid #2F37CA; }
.text-rgb { color: rgb(47, 55, 202); }
.text-hsl { color: hsl(237, 62%, 49%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #2F37CA; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(47, 55, 202, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #2F37CA; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(47, 55, 202, 0.8); }

HTML: <p style="color:#2F37CA">Text here</p> · <div style="background-color:#2F37CA">Div content here</div>

Shades of #2F37CA

Tints of #2F37CA

Tones of #2F37CA

Color harmonies

Complementary — #CAC32F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #2F37CA: #FFFFFF.

Semi-transparent (opacity) text on #2F37CA

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 #2F37CA 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 #2F37CA 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

← #2F37C9  ·  #2F37CB →

Frequently asked questions

What color is #2F37CA?

#2F37CA is Blue, a blue color (RGB 47, 55, 202). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #2F37CA?

#2F37CA is RGB 47, 55, 202 — HSL 237°, 62%, 49% — CMYK 77%, 73%, 0%, 21%.

What colors go with #2F37CA?

Its complement is #CAC32F; analogous partners are #2F85CA and #752FCA. It also appears in 6+ palettes in our collection.

Can I use #2F37CA for text?

White text on #2F37CA has a contrast ratio of 8.33:1 (passes WCAG AA); black text gives 2.52:1.