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Buttressed Tudor

#ba1f06
Notes

Buttressed Tudor (#BA1F06) 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 (8°, 94%, 38%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ba1f06
RGB
rgb(186, 31, 6)
HSL
hsl(8, 94%, 38%)
HWB
hwb(8 2% 27%)
OKLCH
oklch(50.8% 0.192 31.4)
HSV
hsv(8, 97%, 73%)
LAB
lab(40.30% 58.50 51.53)
LCH
lch(40.30% 77.96 41.38)
CMYK
cmyk(0%, 83%, 97%, 27%)

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.

Tudor
noun

The English royal dynasty (1485–1603) — and the deep red of the Tudor Rose, the dynasty's symbol unifying the white rose of York and the red rose of Lancaster. Tudor red refers to the velvet of Henry VIII's portrait robes: a saturated, slightly cool deep red with the velvet's signature optical depth. Deeper than crimson, warmer than burgundy.

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.

#ba1f06
Original
#544900
Protanopia
#796b00
Deuteranopia
#ce001d
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
6.39:1
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
3.29:1

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