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Decisive Lake

#a61633
Notes

Decisive Lake (#A61633) 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 (348°, 77%, 37%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#a61633
RGB
rgb(166, 22, 51)
HSL
hsl(348, 77%, 37%)
HWB
hwb(348 9% 35%)
OKLCH
oklch(46.9% 0.175 17.9)
HSV
hsv(348, 87%, 65%)
LAB
lab(35.83% 56.13 23.00)
LCH
lch(35.83% 60.66 22.28)
CMYK
cmyk(0%, 87%, 69%, 35%)

Etymology

Decisive
adjective

From the Latin decidere, to cut off — used as a modifier for colors that read as firm and final. Decisive black, decisive red: the implication is that the color has settled on its position and won't drift. Sits in the bold-bucket corner alongside resolute, with a slightly sharper edge.

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

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.

#a61633
Original
#454133
Protanopia
#685f2f
Deuteranopia
#b70024
Tritanopia
#373737
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
7.54:1
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
2.78:1

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