Palettes / Colors / #640BB1

#640BB1 — Vivid Purple

#640BB1 is a purple color we call Vivid 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 #640BB1 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.

#640BB1 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 #59B10B; it also sits naturally between #110BB1 and #B10BAC. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 39% · Green 4% · Blue 69%

Cyan 44% · Magenta 94% · Yellow 0% · Key 31%

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

Previews

CSS code for #640BB1

.text { color: #640BB1; }
.background { background-color: #640BB1; }
.border { border: 3px solid #640BB1; }
.text-rgb { color: rgb(100, 11, 177); }
.text-hsl { color: hsl(272, 88%, 37%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #640BB1; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(100, 11, 177, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #640BB1; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(100, 11, 177, 0.8); }

HTML: <p style="color:#640BB1">Text here</p> · <div style="background-color:#640BB1">Div content here</div>

Shades of #640BB1

Tints of #640BB1

Tones of #640BB1

Color harmonies

Complementary — #59B10B:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #640BB1: #FFFFFF.

Semi-transparent (opacity) text on #640BB1

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 #640BB1 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 #640BB1 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

← #640BB0  ·  #640BB2 →

Frequently asked questions

What color is #640BB1?

#640BB1 is Vivid Purple, a purple color (RGB 100, 11, 177). Its closest standard named color is Indigo.

What is the RGB and HSL of #640BB1?

#640BB1 is RGB 100, 11, 177 — HSL 272°, 88%, 37% — CMYK 44%, 94%, 0%, 31%.

What colors go with #640BB1?

Its complement is #59B10B; analogous partners are #110BB1 and #B10BAC. It also appears in 6+ palettes in our collection.

Can I use #640BB1 for text?

White text on #640BB1 has a contrast ratio of 9.44:1 (passes WCAG AA); black text gives 2.22:1.