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Robust Awe Ruby

#c43355
Notes

Robust Awe Ruby (#C43355) 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 (346°, 59%, 48%) 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
#c43355
RGB
rgb(196, 51, 85)
HSL
hsl(346, 59%, 48%)
HWB
hwb(346 20% 23%)
OKLCH
oklch(55.2% 0.181 12.1)
HSV
hsv(346, 74%, 77%)
LAB
lab(45.31% 58.61 15.18)
LCH
lch(45.31% 60.54 14.53)
CMYK
cmyk(0%, 74%, 57%, 23%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Awe
modifier

Old Norse agi, fright-and-reverence. As a color modifier, awe implies a reverent-and-overwhelmed-and-hushed quality, the visual register of Burkean-sublime-and-Caspar-David-Friedrich-awe hand-reverent-and-overwhelmed-and-hushed Burkean-sublime-and-Caspar-David-Friedrich-and-Romantic-vista awed-and-reverent-and-overwhelmed-and-hushed surfaces under Burkean-sublime-and-Caspar-David-Friedrich-and-Romantic-vista alpine-and-storm-cloud-and-mountain-pass cathedral-of-nature-light. Sits at the modifier-and-mood end of the grid, parallel to bliss and grace 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.

#c43355
Original
#595855
Protanopia
#7f7651
Deuteranopia
#d60341
Tritanopia
#545454
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
5.31:1
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
3.95:1

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