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Voluptuous Fei

#b1372c
Notes

Voluptuous Fei (#B1372C) 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 (5°, 60%, 43%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b1372c
RGB
rgb(177, 55, 44)
HSL
hsl(5, 60%, 43%)
HWB
hwb(5 17% 31%)
OKLCH
oklch(51.6% 0.160 28.9)
P3
color(display-p3 0.6409 0.2516 0.2003)
HSV
hsv(5, 75%, 69%)
LAB
lab(41.63% 48.75 34.59)
LCH
lch(41.63% 59.78 35.36)
CMYK
cmyk(0%, 69%, 75%, 31%)

Etymology

Voluptuous
adjective

Latin voluptuōsus, pleasurable — derived from voluptās (pleasure). As a color modifier, voluptuous implies a saturated-and-rich-and-curving-sensual quality, the deep-rich color of Rubens-and-Boucher baroque-and-rococo flesh-and-fabric tonality. Sits at the bold-and-saturated end of the grid, parallel to lush and plush in tone.

Fei
noun

A bright, slightly cool red used in Chinese textile tradition for the inner robes of Tang-dynasty court officials. The color refers to a fei-dyed silk: a saturated, slightly cool red with the satin finish of plant-dye-on-silk. Cooler than hong, brighter than jiang. The Chinese cousin of karakurenai.

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.

#b1372c
Original
#5a512a
Protanopia
#786c28
Deuteranopia
#c30f35
Tritanopia
#505050
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
6.08:1
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
3.45:1

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
##B1372C
Display P3
Display P3
color(display-p3 0.6409 0.2516 0.2003)
P3 has subtle headroomOKLCH chroma 0.160

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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