Palettes / Colors / #306CA5

#306CA5 — Blue

#306CA5 is a blue color we call Blue, closest to the named color SteelBlue (#4682B4). It belongs to the blue family.

#306CA5 is a cool blue color associated with trust, calm and professionalism. It sits comfortably in the middle: usable for large areas in soft schemes, or as a supporting color beside something stronger.

Its strongest partner is its complement #A66930; it also sits naturally between #30A6A4 and #3032A6. 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 19% · Green 42% · Blue 65%

Cyan 71% · Magenta 35% · Yellow 0% · Key 35%

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

Previews

CSS code for #306CA5

.text { color: #306CA5; }
.background { background-color: #306CA5; }
.border { border: 3px solid #306CA5; }
.text-rgb { color: rgb(48, 108, 165); }
.text-hsl { color: hsl(209, 55%, 42%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #306CA5; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(48, 108, 165, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #306CA5; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(48, 108, 165, 0.8); }

HTML: <p style="color:#306CA5">Text here</p> · <div style="background-color:#306CA5">Div content here</div>

Shades of #306CA5

Tints of #306CA5

Tones of #306CA5

Color harmonies

Complementary — #A66930:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #306CA5: #FFFFFF.

How #306CA5 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 #306CA5

Palettes with a similar color

These palettes use a close neighbour of #306CA5 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

← #306CA4  ·  #306CA6 →

Frequently asked questions

What color is #306CA5?

#306CA5 is Blue, a blue color (RGB 48, 108, 165). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #306CA5?

#306CA5 is RGB 48, 108, 165 — HSL 209°, 55%, 42% — CMYK 71%, 35%, 0%, 35%.

What colors go with #306CA5?

Its complement is #A66930; analogous partners are #30A6A4 and #3032A6. It also appears in 6+ palettes in our collection.

Can I use #306CA5 for text?

White text on #306CA5 has a contrast ratio of 5.51:1 (passes WCAG AA); black text gives 3.81:1.