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Authoritative Twill Rose

#bf0f09
Notes

Authoritative Twill Rose (#BF0F09) 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 (2°, 91%, 39%) 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
#bf0f09
RGB
rgb(191, 15, 9)
HSL
hsl(2, 91%, 39%)
HWB
hwb(2 4% 25%)
OKLCH
oklch(51.0% 0.203 29.2)
HSV
hsv(2, 95%, 75%)
LAB
lab(40.31% 62.90 51.10)
LCH
lch(40.31% 81.04 39.09)
CMYK
cmyk(0%, 92%, 95%, 25%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Twill
modifier

Old English twili, twill-weave. As a color modifier, twill implies a diagonal-weave-textile quality, the visual register of Harris-Tweed-and-Italian-gabardine-twill hand-woven-and-diagonal-twill wool-and-cotton-and-silk Harris-Tweed-and-Italian-gabardine-twill-textile surfaces under Harris-Tweed-and-Italian-gabardine hand-woven-twill workshop-light. Sits at the modifier-and-texture end of the grid, parallel to woven and quilt in usage.

Rose
noun

The Latin rosa, the Greek rhodon, the Persian gul — every European language has a different name for the same flower and the same color. Rose covers the spectrum from blush to fuchsia depending on the cultivar, but in pigment shorthand it means a cool, slightly bluish red — the inside of a damask petal, the dye that washes out of madder root.

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.

#bf0f09
Original
#524702
Protanopia
#7a6c00
Deuteranopia
#d30013
Tritanopia
#343434
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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