#3A0CA3Indigo
#7209B7Grape
#B5179EMagenta
#F72585Rose

Ultraviolet color palette

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Ultraviolet is a vivid split color palette tagged neon, gradient, vibrant. A split scheme: Indigo plays against Rose across roughly 75° of hue. Saturation runs high, so use the brightest color sparingly and let the others carry the surface area. Warm and cool hues are mixed, which adds depth.

Color codes click any value to copy

SwatchNameHEXRGBHSLOKLCH
Indigo#3A0CA3rgb(58, 12, 163)hsl(258, 86%, 34%)oklch(36.2% 0.206 283)
Grape#7209B7rgb(114, 9, 183)hsl(276, 91%, 38%)oklch(44.7% 0.228 304)
Magenta#B5179Ergb(181, 23, 158)hsl(309, 77%, 40%)oklch(53.6% 0.225 336)
Rose#F72585rgb(247, 37, 133)hsl(333, 93%, 56%)oklch(64.3% 0.244 1)

Why it works and how to use it

With 4 chromatic colors, Grape takes the lead while the rest support. Lightness runs from 34% to 56%. Well suited to websites, presentations and branding.

  • Background: Rose (#F72585) is the lightest color, so it belongs on large surfaces.
  • Text: Indigo (#3A0CA3) on #F72585 gives 3.16:1, enough for large headings only.
  • Primary: Grape (#7209B7) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
  • Accent: Magenta (#B5179E) for highlights, badges and hover states.

No pair inside the palette reaches 4.5:1, so add black or white for body text.

Preview on a real UI see how the palette feels in context

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Design faster with Ultraviolet

A palette preview that turns four colors into a page, so you can judge hierarchy, contrast and mood before you commit.

Primary action Secondary
Card title
Card title
Card title
Roles are assigned by lightness.

Color blindness simulation

#3A0CA3
#7209B7
#B5179E
#F72585

Color-blind check: under protanopia and deuteranopia, Indigo and Grape, Indigo and Magenta, Grape and Magenta become hard to tell apart, so do not rely on that pair alone to carry meaning.

Contrast check WCAG ratios between palette colors

PairSampleRatioLevel
#3A0CA3 on #F72585Aa3.16:1AA large only
#7209B7 on #F72585Aa2.28:1Fail
#3A0CA3 on #B5179EAa2.03:1Fail
#B5179E on #F72585Aa1.55:1Fail
#7209B7 on #B5179EAa1.47:1Fail
#3A0CA3 on #7209B7Aa1.38:1Fail

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