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Sumptuous Lake

#9b1831
Notes

Sumptuous Lake (#9B1831) is a true red 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 (349°, 73%, 35%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#9b1831
RGB
rgb(155, 24, 49)
HSL
hsl(349, 73%, 35%)
HWB
hwb(349 9% 39%)
OKLCH
oklch(44.9% 0.164 17.7)
HSV
hsv(349, 85%, 61%)
LAB
lab(33.66% 52.50 21.07)
LCH
lch(33.66% 56.57 21.86)
CMYK
cmyk(0%, 85%, 68%, 39%)

Etymology

Sumptuous
adjective

Latin sūmptuōsus, expensive — derived from sūmptus (expense). As a color modifier, sumptuous implies a saturated-and-rich-and-luxurious quality, the deep-rich color of Burgundy-and-Champagne-Court late-medieval silk-and-velvet livery in the Très-Riches-Heures manuscript tradition. Sits at the bold-and-saturated end of the grid, parallel to opulent and lavish.

Lake
noun

A general term for an organic pigment laked onto an inorganic base — particularly red lakes from kermes, cochineal, or madder, used in Renaissance and Baroque oil painting where pure plant or insect dyes lacked stability. The color refers to a cochineal lake-tinted glaze in a Vermeer painting: a saturated, slightly cool deep red with the matte translucency of a thin pigment-and-binder layer.

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

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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.

#9b1831
Original
#413e31
Protanopia
#62592d
Deuteranopia
#ab0023
Tritanopia
#363636
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
8.18:1
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
2.57:1

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