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Engulfed Indygo

#1c0b41
Notes

Engulfed Indygo (#1C0B41) 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 (259°, 71%, 15%) 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
#1c0b41
RGB
rgb(28, 11, 65)
HSL
hsl(259, 71%, 15%)
HWB
hwb(259 4% 75%)
OKLCH
oklch(21.6% 0.095 290.6)
P3
color(display-p3 0.1008 0.0464 0.2442)
HSV
hsv(259, 83%, 25%)
LAB
lab(7.84% 24.11 -30.93)
LCH
lch(7.84% 39.21 307.94)
CMYK
cmyk(57%, 83%, 0%, 75%)

Etymology

Engulfed
adjective

Old French en-golfe, into-the-gulf — past-participle of engulf. As a color modifier, engulfed implies the deep-overwhelming-and-cool quality where the hue has been completely surrounded by darkness, like a small boat overtaken by Atlantic-ocean swells. Sits at the deep-and-overwhelmed end of the grid, parallel to submerged and suffocating.

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.

#1c0b41
Original
#001843
Protanopia
#001640
Deuteranopia
#0f1925
Tritanopia
#131313
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
17.89:1
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
1.17:1

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
##1C0B41
Display P3
Display P3
color(display-p3 0.1008 0.0464 0.2442)
P3 has subtle headroomOKLCH chroma 0.095

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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