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Imperial Scarlet

#b41b41
Notes

Imperial Scarlet (#B41B41) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (345°, 74%, 41%) 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
#b41b41
RGB
rgb(180, 27, 65)
HSL
hsl(345, 74%, 41%)
HWB
hwb(345 11% 29%)
OKLCH
oklch(50.1% 0.185 14.5)
HSV
hsv(345, 85%, 71%)
LAB
lab(39.36% 59.60 19.19)
LCH
lch(39.36% 62.62 17.85)
CMYK
cmyk(0%, 85%, 64%, 29%)

Etymology

Imperial
adjective

From the Latin imperialis, of the empire — applied to color since the medieval period for the hues reserved for sovereigns and empires: imperial purple of Tyrian dye, imperial yellow of Ming-dynasty porcelain. As a modifier, imperial implies saturation combined with the institutional weight of a color owned by a court. Sits in the bold-and-deep corner, alongside royal.

Scarlet
noun

From the medieval Latin scarlatum, originally a fine wool cloth rather than a color — the dye came later when the fabric was associated with the bright red of kermes-stained textiles. The defining red of British military uniforms, fox-hunt coats, and The Scarlet Letter. Hotter than crimson, less orange than vermillion: a pure, attention-demanding red.

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.

#b41b41
Original
#4b4941
Protanopia
#71683d
Deuteranopia
#c6002d
Tritanopia
#3e3e3e
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).
AAon White
6.62:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.17:1

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