Palettes / Colors / #51507A

#51507A — Dusty Blue

#51507A is a blue color we call Dusty Blue, closest to the named color DarkSlateBlue (#483D8B). It belongs to the blue family.

Color name

Closest CSS keyword: darkslateblue (#483D8B) — not an exact match. CSS darkslateblue gives you #483D8B, a different color; use #51507A 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.

#51507A 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 #7B7B51; it also sits naturally between #51657B and #67517B. 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 32% · Green 31% · Blue 48%

Cyan 34% · Magenta 34% · Yellow 0% · Key 52%

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

Previews

CSS code for #51507A

.text { color: #51507A; }
.background { background-color: #51507A; }
.border { border: 3px solid #51507A; }
.text-rgb { color: rgb(81, 80, 122); }
.text-hsl { color: hsl(241, 21%, 40%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #51507A; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 80, 122, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #51507A; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 80, 122, 0.8); }

HTML: <p style="color:#51507A">Text here</p> · <div style="background-color:#51507A">Div content here</div>

Shades of #51507A

Tints of #51507A

Tones of #51507A

Color harmonies

Complementary — #7B7B51:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #51507A: #FFFFFF.

Semi-transparent (opacity) text on #51507A

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 #51507A 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 #51507A 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

← #515079  ·  #51507B →

Frequently asked questions

What color is #51507A?

#51507A is Dusty Blue, a blue color (RGB 81, 80, 122). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #51507A?

#51507A is RGB 81, 80, 122 — HSL 241°, 21%, 40% — CMYK 34%, 34%, 0%, 52%.

What colors go with #51507A?

Its complement is #7B7B51; analogous partners are #51657B and #67517B. It also appears in 6+ palettes in our collection.

Can I use #51507A for text?

White text on #51507A has a contrast ratio of 7.56:1 (passes WCAG AA); black text gives 2.78:1.