Palettes / Colors / #045C8B

#045C8B — Vivid Blue

#045C8B is a blue color we call Vivid Blue, closest to the named color Teal (#008080). It belongs to the blue family.

Color name

Closest CSS keyword: teal (#008080) — not an exact match. CSS teal gives you #008080, a different color; use #045C8B 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.

#045C8B 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 #8B3304; it also sits naturally between #048B76 and #04188B. 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 2% · Green 36% · Blue 55%

Cyan 97% · Magenta 34% · Yellow 0% · Key 45%

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

Previews

CSS code for #045C8B

.text { color: #045C8B; }
.background { background-color: #045C8B; }
.border { border: 3px solid #045C8B; }
.text-rgb { color: rgb(4, 92, 139); }
.text-hsl { color: hsl(201, 94%, 28%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #045C8B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(4, 92, 139, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #045C8B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(4, 92, 139, 0.8); }

HTML: <p style="color:#045C8B">Text here</p> · <div style="background-color:#045C8B">Div content here</div>

Shades of #045C8B

Tints of #045C8B

Tones of #045C8B

Color harmonies

Complementary — #8B3304:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #045C8B: #FFFFFF.

Semi-transparent (opacity) text on #045C8B

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 #045C8B 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 #045C8B 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

← #045C8A  ·  #045C8C →

Frequently asked questions

What color is #045C8B?

#045C8B is Vivid Blue, a blue color (RGB 4, 92, 139). Its closest standard named color is Teal.

What is the RGB and HSL of #045C8B?

#045C8B is RGB 4, 92, 139 — HSL 201°, 94%, 28% — CMYK 97%, 34%, 0%, 45%.

What colors go with #045C8B?

Its complement is #8B3304; analogous partners are #048B76 and #04188B. It also appears in 6+ palettes in our collection.

Can I use #045C8B for text?

White text on #045C8B has a contrast ratio of 7.22:1 (passes WCAG AA); black text gives 2.91:1.