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Pitchy Indygo

#3a1b78
Notes

Pitchy Indygo (#3A1B78) is a deep indigo with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (260°, 63%, 29%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3a1b78
RGB
rgb(58, 27, 120)
HSL
hsl(260, 63%, 29%)
HWB
hwb(260 11% 53%)
OKLCH
oklch(32.9% 0.146 291.4)
P3
color(display-p3 0.2113 0.1121 0.4523)
HSV
hsv(260, 78%, 47%)
LAB
lab(20.20% 37.66 -47.48)
LCH
lch(20.20% 60.60 308.43)
CMYK
cmyk(52%, 78%, 0%, 53%)

Etymology

Pitchy
adjective

Old English pic, pitch — adjectival suffix -y. As a color modifier, pitchy implies the deep-glossy-black quality of bitumen-and-pine-pitch viscous-residue surfaces, particularly the Norse-and-Viking longship-pine-tar caulking. Sits at the deepest-warm end of the grid, parallel to tarry and warmer than Stygian.

Indygo
noun

Polish for indigo (Indigofera tinctoria) — adopted into Polish color terminology during the 18th-century Polish-Lithuanian Commonwealth's textile-trade contact with Ottoman indigo merchants. Indygo color refers to a freshly indygo-dyed Polish-folk linen: a saturated, slightly cool deep blue-violet with the matte finish of multi-bath fermentation indigo on hand-spun linen. Cooler than English indigo and warmer than Russian fioletovyy.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#3a1b78
Original
#00327b
Protanopia
#002f76
Deuteranopia
#253448
Tritanopia
#282828
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
13.06:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.61:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##3A1B78
Display P3
Display P3
color(display-p3 0.2113 0.1121 0.4523)
P3 has subtle headroomOKLCH chroma 0.146

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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