Colormapped
Color reference

Indigo #4B0082

Indigo is the standard CSS named color #4B0082, a deep blue-violet reference.

Indigo is the CSS named color keyword indigo, standardized at #4B0082 in sRGB.

Indigo #4B0082 12.95:1 with white text

Color values

HEX#4B0082
RGBrgb(75, 0, 130)
HSLhsl(275 100% 25%)
HSV275°, 100%, 51%
CMYK42%, 100%, 0%, 49%

HEX/RGB/HSL/HSV are deterministic sRGB representations. CMYK here is a mathematical approximation, not a printer-profile conversion.

Black or white text?

Black text 1.62:1 — AA normal text fails
White text 12.95:1 — AA normal text passes

AA normal text: black fails; white passes.

AA large text: black fails; white passes.

WCAG contrast thresholds use 4.5:1 for normal text and 3:1 for large text. Do not round a near-threshold result upward when testing conformance.

Tints and shades of Indigo

These steps are computed by RGB-mixing #4B0082 toward white or black. They are generated values, not official named colors.

80% tint #DBCCE6
60% tint #B799CD
40% tint #9366B4
20% tint #6F339B
Base #4B0082
20% shade #3C0068
40% shade #2D004E
60% shade #1E0034
80% shade #0F001A

Need more control? Use the Tints and Shades Generator or Lighten / Darken tool.

CSS usage

.example {
  color: #FFFFFF;
  background-color: indigo;
}

You can use either indigo or #4B0082 in CSS; both resolve to the same sRGB color.