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Earnest Hover Ruby

#aa172b
Notes

Earnest Hover Ruby (#AA172B) 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 (352°, 76%, 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#aa172b
RGB
rgb(170, 23, 43)
HSL
hsl(352, 76%, 38%)
HWB
hwb(352 9% 33%)
OKLCH
oklch(47.6% 0.178 21.7)
P3
color(display-p3 0.6115 0.1586 0.1880)
HSV
hsv(352, 86%, 67%)
LAB
lab(36.62% 56.66 29.17)
LCH
lch(36.62% 63.72 27.24)
CMYK
cmyk(0%, 86%, 75%, 33%)

Etymology

Earnest
adjective

Old English eornost, seriousness, zeal. Used as a color modifier since the nineteenth century for hues that read as committed but unshowy — the working blues of denim, the deep greens of Quaker meetinghouses. Sits in the bold-and-quiet corner of the grid, slightly less luminous than resolute and slightly less institutional than imperial.

Hover
modifier

Middle English hoveren, to-remain-suspended. As a color modifier, hover implies a suspended-and-floating-and-hesitant quality, the visual register of kestrel-and-hummingbird-hover hand-suspended-and-floating-and-hesitant kestrel-and-hummingbird-and-dragonfly hovered-and-suspended-and-floating-and-hesitant surfaces under kestrel-and-hummingbird-and-dragonfly heat-shimmer-and-summer-meadow-and-cliff-edge mid-air-light. Sits at the modifier-and-mood end of the grid, parallel to float and flit 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.

#aa172b
Original
#48422a
Protanopia
#6c6126
Deuteranopia
#bb0021
Tritanopia
#383838
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
7.33:1
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
2.87:1

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
##AA172B
Display P3
Display P3
color(display-p3 0.6115 0.1586 0.1880)
P3 has subtle headroomOKLCH chroma 0.178

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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