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Caffeinated Sindoor

#f3628d
Notes

Caffeinated Sindoor (#F3628D) is a true red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (342°, 86%, 67%) 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
#f3628d
RGB
rgb(243, 98, 141)
HSL
hsl(342, 86%, 67%)
HWB
hwb(342 38% 5%)
OKLCH
oklch(69.1% 0.181 4.7)
HSV
hsv(342, 60%, 95%)
LAB
lab(61.41% 59.30 5.53)
LCH
lch(61.41% 59.55 5.33)
CMYK
cmyk(0%, 60%, 42%, 5%)

Etymology

Caffeinated
adjective

Modern French caféine — past-participle of caffeinate. As a color modifier, caffeinated implies a saturated-and-jumpy-and-active quality, the bright color of Red-Bull-and-Monster energy-drink-can label-design saturated-and-energizing palette. Sits at the bright-and-active end of the grid, parallel to jazzed and wired in usage.

Sindoor
noun

The vermillion powder applied to the parted hair of married Hindu women — traditionally derived from cinnabar and turmeric, more recently from synthetic dyes. The color refers to fresh sindoor in a wedding ceremony: a saturated, slightly orange-shifted bright red with the powdery finish of mineral pigment. Brighter than vermillion, warmer than coral, with the social weight of a color tied to a single life-stage marker.

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.

#f3628d
Original
#7f828e
Protanopia
#a49f8a
Deuteranopia
#ff5172
Tritanopia
#848484
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).
AA Largeon White
3.02:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.94:1

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