Palettes / Colors / #331D5B

#331D5B — Deep Muted Purple

#331D5B is a purple color we call Deep Muted 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 #331D5B 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.

#331D5B is a cool purple color associated with luxury, creativity and mystery. 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 #475D1D; it also sits naturally between #1D275D and #531D5D. 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 36%

Cyan 44% · Magenta 68% · Yellow 0% · Key 64%

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

Previews

CSS code for #331D5B

.text { color: #331D5B; }
.background { background-color: #331D5B; }
.border { border: 3px solid #331D5B; }
.text-rgb { color: rgb(51, 29, 91); }
.text-hsl { color: hsl(261, 52%, 24%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #331D5B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(51, 29, 91, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #331D5B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(51, 29, 91, 0.8); }

HTML: <p style="color:#331D5B">Text here</p> · <div style="background-color:#331D5B">Div content here</div>

Shades of #331D5B

Tints of #331D5B

Tones of #331D5B

Color harmonies

Complementary — #475D1D:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #331D5B: #FFFFFF.

Semi-transparent (opacity) text on #331D5B

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 #331D5B 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 #331D5B 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

← #331D5A  ·  #331D5C →

Frequently asked questions

What color is #331D5B?

#331D5B is Deep Muted Purple, a purple color (RGB 51, 29, 91). Its closest standard named color is MidnightBlue.

What is the RGB and HSL of #331D5B?

#331D5B is RGB 51, 29, 91 — HSL 261°, 52%, 24% — CMYK 44%, 68%, 0%, 64%.

What colors go with #331D5B?

Its complement is #475D1D; analogous partners are #1D275D and #531D5D. It also appears in 6+ palettes in our collection.

Can I use #331D5B for text?

White text on #331D5B has a contrast ratio of 14.31:1 (passes WCAG AA); black text gives 1.47:1.