Palettes / Colors / #331D73

#331D73 — Purple

#331D73 is a purple color we call Purple, closest to the named color MidnightBlue (#191970). It belongs to the purple family.

Color name

Closest CSS keyword: midnightblue (#191970) — not an exact match. CSS midnightblue gives you #191970, a different color; use #331D73 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.

#331D73 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 #5D721D; it also sits naturally between #1D3272 and #5D1D72. 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 20% · Green 11% · Blue 45%

Cyan 56% · Magenta 75% · Yellow 0% · Key 55%

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

Previews

CSS code for #331D73

.text { color: #331D73; }
.background { background-color: #331D73; }
.border { border: 3px solid #331D73; }
.text-rgb { color: rgb(51, 29, 115); }
.text-hsl { color: hsl(255, 60%, 28%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #331D73; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(51, 29, 115, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #331D73; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(51, 29, 115, 0.8); }

HTML: <p style="color:#331D73">Text here</p> · <div style="background-color:#331D73">Div content here</div>

Shades of #331D73

Tints of #331D73

Tones of #331D73

Color harmonies

Complementary — #5D721D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #331D73: #FFFFFF.

Semi-transparent (opacity) text on #331D73

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 #331D73 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 #331D73 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

← #331D72  ·  #331D74 →

Frequently asked questions

What color is #331D73?

#331D73 is Purple, a purple color (RGB 51, 29, 115). Its closest standard named color is MidnightBlue.

What is the RGB and HSL of #331D73?

#331D73 is RGB 51, 29, 115 — HSL 255°, 60%, 28% — CMYK 56%, 75%, 0%, 55%.

What colors go with #331D73?

Its complement is #5D721D; analogous partners are #1D3272 and #5D1D72. It also appears in 6+ palettes in our collection.

Can I use #331D73 for text?

White text on #331D73 has a contrast ratio of 13.43:1 (passes WCAG AA); black text gives 1.56:1.