Palettes / Colors / #045BCA

#045BCA — Vivid Blue

#045BCA 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 #045BCA 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.

#045BCA 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 #C87304; it also sits naturally between #04BBC8 and #1104C8. 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 2% · Green 36% · Blue 79%

Cyan 98% · Magenta 55% · Yellow 0% · Key 21%

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

Previews

CSS code for #045BCA

.text { color: #045BCA; }
.background { background-color: #045BCA; }
.border { border: 3px solid #045BCA; }
.text-rgb { color: rgb(4, 91, 202); }
.text-hsl { color: hsl(214, 96%, 40%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #045BCA; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(4, 91, 202, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #045BCA; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(4, 91, 202, 0.8); }

HTML: <p style="color:#045BCA">Text here</p> · <div style="background-color:#045BCA">Div content here</div>

Shades of #045BCA

Tints of #045BCA

Tones of #045BCA

Color harmonies

Complementary — #C87304:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #045BCA: #FFFFFF.

Semi-transparent (opacity) text on #045BCA

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 #045BCA 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 #045BCA 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

← #045BC9  ·  #045BCB →

Frequently asked questions

What color is #045BCA?

#045BCA is Vivid Blue, a blue color (RGB 4, 91, 202). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #045BCA?

#045BCA is RGB 4, 91, 202 — HSL 214°, 96%, 40% — CMYK 98%, 55%, 0%, 21%.

What colors go with #045BCA?

Its complement is #C87304; analogous partners are #04BBC8 and #1104C8. It also appears in 6+ palettes in our collection.

Can I use #045BCA for text?

White text on #045BCA has a contrast ratio of 6.26:1 (passes WCAG AA); black text gives 3.35:1.