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Plunged Madras

#1a123c
Notes

Plunged Madras (#1A123C) is a deep indigo with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (251°, 54%, 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1a123c
RGB
rgb(26, 18, 60)
HSL
hsl(251, 54%, 15%)
HWB
hwb(251 7% 76%)
OKLCH
oklch(22.1% 0.077 287.1)
P3
color(display-p3 0.0970 0.0718 0.2259)
HSV
hsv(251, 70%, 24%)
LAB
lab(8.81% 17.29 -25.78)
LCH
lch(8.81% 31.04 303.84)
CMYK
cmyk(57%, 70%, 0%, 76%)

Etymology

Plunged
adjective

Old French plonger, to plunge via Latin plumbicāre (to weight with lead) — past-participle of plunge. As a color modifier, plunged implies the deep-and-suddenly-deepened quality of a hue forced into darkness. Sits at the deep-and-rapid-shift end of the grid, parallel to submerged with kinetic register.

Madras
noun

Indian Coromandel Coast city (now Chennai) — once the British East India Company's premier indigo export depot, processing Bihar and Bengal Indigofera tinctoria before shipment to Europe. Madras color refers to a Madras-checked indigo-and-white cotton handloom: a saturated, slightly cool deep blue-violet with the matte finish of multi-bath fermentation indigo on hand-loomed Coromandel cotton.

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.

#1a123c
Original
#001a3d
Protanopia
#00183b
Deuteranopia
#0e1c24
Tritanopia
#171717
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
17.56:1
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
1.20:1

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
##1A123C
Display P3
Display P3
color(display-p3 0.0970 0.0718 0.2259)
Inside sRGBOKLCH chroma 0.077

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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