Palettes / Colors / #331B43

#331B43 — Deep Muted Purple

#331B43 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 #331B43 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.

#331B43 is a cool purple color associated with luxury, creativity and mystery. It is deep enough for text, outlines and dark interface surfaces, and makes light colors glow next to it.

Its strongest partner is its complement #2A421A; it also sits naturally between #1E1A42 and #421A3E. 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 26%

Cyan 24% · Magenta 60% · Yellow 0% · Key 74%

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

Previews

CSS code for #331B43

.text { color: #331B43; }
.background { background-color: #331B43; }
.border { border: 3px solid #331B43; }
.text-rgb { color: rgb(51, 27, 67); }
.text-hsl { color: hsl(276, 43%, 18%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #331B43; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(51, 27, 67, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #331B43; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(51, 27, 67, 0.8); }

HTML: <p style="color:#331B43">Text here</p> · <div style="background-color:#331B43">Div content here</div>

Shades of #331B43

Tints of #331B43

Tones of #331B43

Color harmonies

Complementary — #2A421A:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #331B43: #FFFFFF.

Semi-transparent (opacity) text on #331B43

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 #331B43 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 #331B43 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

← #331B42  ·  #331B44 →

Frequently asked questions

What color is #331B43?

#331B43 is Deep Muted Purple, a purple color (RGB 51, 27, 67). Its closest standard named color is MidnightBlue.

What is the RGB and HSL of #331B43?

#331B43 is RGB 51, 27, 67 — HSL 276°, 43%, 18% — CMYK 24%, 60%, 0%, 74%.

What colors go with #331B43?

Its complement is #2A421A; analogous partners are #1E1A42 and #421A3E. It also appears in 6+ palettes in our collection.

Can I use #331B43 for text?

White text on #331B43 has a contrast ratio of 15.23:1 (passes WCAG AA); black text gives 1.38:1.