colors
Back to gallery

Indomitable Zeus Ruby

#b91b6b
Notes

Indomitable Zeus Ruby (#B91B6B) is a true magenta with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (330°, 75%, 42%) 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
#b91b6b
RGB
rgb(185, 27, 107)
HSL
hsl(330, 75%, 42%)
HWB
hwb(330 11% 27%)
OKLCH
oklch(52.2% 0.198 357.0)
HSV
hsv(330, 85%, 73%)
LAB
lab(41.47% 64.10 -4.29)
LCH
lch(41.47% 64.24 356.17)
CMYK
cmyk(0%, 85%, 42%, 27%)

Etymology

Indomitable
adjective

Latin indomitābilis, unconquerable — derived from domāre (to tame). As a color modifier, indomitable implies a saturated-and-unconquerable-and-fierce quality where the hue resists any attempt to subdue or modulate its presence. Sits at the bold-and-resilient end of the grid, parallel to unyielding and adamant.

Zeus
modifier

Greek Ζεύς, king-of-the-Olympian-gods. As a color modifier, zeus implies a thunderbolt-and-king-of-gods-and-Olympian quality, the visual register of Olympian-Zeus-and-Phidias-Pheidias-statue hand-thunderbolt-and-king-of-gods-and-Olympian Olympian-Zeus-and-Phidias-statue-and-Mount-Olympus zeus-and-thunderbolt-and-king-of-gods-and-Olympian surfaces under Olympian-Zeus-and-Phidias-statue-and-Mount-Olympus Pheidias-chryselephantine-and-Olympia thunder-cloud-light. Sits at the modifier-and-myth end of the grid, parallel to hera and atlas in usage.

Ruby
noun

From the Latin ruber — simply, red. The gemstone is a chromium-tinged corundum, harder than anything in nature except diamond, and so saturated that a fine Burmese pigeon's blood ruby at auction outpaces a comparable diamond by weight. The color borrows the gem's confidence: a clear, glassy red without the brown of garnet or the blue of crimson.

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.

#b91b6b
Original
#424f6d
Protanopia
#6d6c68
Deuteranopia
#c90042
Tritanopia
#424242
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
6.12:1
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
3.43:1

Related Colors

Canvas