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Buttressed Caftan

#812465
Notes

Buttressed Caftan (#812465) is a deep magenta with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (318°, 56%, 32%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#812465
RGB
rgb(129, 36, 101)
HSL
hsl(318, 56%, 32%)
HWB
hwb(318 14% 49%)
OKLCH
oklch(42.9% 0.146 342.3)
P3
color(display-p3 0.4657 0.1693 0.3864)
HSV
hsv(318, 72%, 51%)
LAB
lab(31.51% 46.29 -16.58)
LCH
lch(31.51% 49.17 340.30)
CMYK
cmyk(0%, 72%, 22%, 49%)

Etymology

Buttressed
adjective

Old French bouterez, thrusting-mass — past-participle of buttress, derived from bouter (to thrust). As a color modifier, buttressed implies a saturated-and-architecturally-supported quality, the deep-rich color of Gothic-Cathedral flying-buttress-and-rib-vault stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and reinforced.

Caftan
noun

Persian قفطان, kaftan — a long, loose-fitting Middle-Eastern and North-African robe of layered silk-and-velvet, often dyed in deep-magenta fuchsine or natural kermes for ceremonial occasions. Caftan color refers to an Ottoman-period 19th-century caftan in the Topkapi Palace harem-wing collection: a saturated, slightly cool deep magenta with the velvet finish of multi-bath natural-and-synthetic dye on jacquard-figured silk.

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.

#812465
Original
#2c4067
Protanopia
#495063
Deuteranopia
#892541
Tritanopia
#3c3c3c
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
8.85:1
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
2.37:1

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
##812465
Display P3
Display P3
color(display-p3 0.4657 0.1693 0.3864)
P3 has subtle headroomOKLCH chroma 0.146

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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