Palettes / Colors / #2175CB

#2175CB — Blue

#2175CB 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 #2175CB 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.

#2175CB 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 #CA7521; it also sits naturally between #21CACA and #2121CA. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 13% · Green 46% · Blue 80%

Cyan 84% · Magenta 42% · Yellow 0% · Key 20%

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

Previews

CSS code for #2175CB

.text { color: #2175CB; }
.background { background-color: #2175CB; }
.border { border: 3px solid #2175CB; }
.text-rgb { color: rgb(33, 117, 203); }
.text-hsl { color: hsl(210, 72%, 46%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #2175CB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(33, 117, 203, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #2175CB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(33, 117, 203, 0.8); }

HTML: <p style="color:#2175CB">Text here</p> · <div style="background-color:#2175CB">Div content here</div>

Shades of #2175CB

Tints of #2175CB

Tones of #2175CB

Color harmonies

Complementary — #CA7521:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #2175CB: #FFFFFF.

Semi-transparent (opacity) text on #2175CB

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 #2175CB 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 #2175CB 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

← #2175CA  ·  #2175CC →

Frequently asked questions

What color is #2175CB?

#2175CB is Blue, a blue color (RGB 33, 117, 203). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #2175CB?

#2175CB is RGB 33, 117, 203 — HSL 210°, 72%, 46% — CMYK 84%, 42%, 0%, 20%.

What colors go with #2175CB?

Its complement is #CA7521; analogous partners are #21CACA and #2121CA. It also appears in 6+ palettes in our collection.

Can I use #2175CB for text?

White text on #2175CB has a contrast ratio of 4.70:1 (passes WCAG AA); black text gives 4.47:1.