Palettes / Colors / #511D91

#511D91 — Purple

#511D91 is a purple color we call Purple, closest to the named color Indigo (#4B0082). It belongs to the purple family.

Color name

Closest CSS keyword: indigo (#4B0082) — not an exact match. CSS indigo gives you #4B0082, a different color; use #511D91 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.

#511D91 is a cool purple color associated with luxury, creativity and mystery. 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 #5D911D; it also sits naturally between #1D2291 and #8B1D91. 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 11% · Blue 57%

Cyan 44% · Magenta 80% · Yellow 0% · Key 43%

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

Previews

CSS code for #511D91

.text { color: #511D91; }
.background { background-color: #511D91; }
.border { border: 3px solid #511D91; }
.text-rgb { color: rgb(81, 29, 145); }
.text-hsl { color: hsl(267, 67%, 34%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #511D91; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 29, 145, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #511D91; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 29, 145, 0.8); }

HTML: <p style="color:#511D91">Text here</p> · <div style="background-color:#511D91">Div content here</div>

Shades of #511D91

Tints of #511D91

Tones of #511D91

Color harmonies

Complementary — #5D911D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #511D91: #FFFFFF.

Semi-transparent (opacity) text on #511D91

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 #511D91 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 #511D91 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

← #511D90  ·  #511D92 →

Frequently asked questions

What color is #511D91?

#511D91 is Purple, a purple color (RGB 81, 29, 145). Its closest standard named color is Indigo.

What is the RGB and HSL of #511D91?

#511D91 is RGB 81, 29, 145 — HSL 267°, 67%, 34% — CMYK 44%, 80%, 0%, 43%.

What colors go with #511D91?

Its complement is #5D911D; analogous partners are #1D2291 and #8B1D91. It also appears in 6+ palettes in our collection.

Can I use #511D91 for text?

White text on #511D91 has a contrast ratio of 10.86:1 (passes WCAG AA); black text gives 1.93:1.