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Mighty Sagittarius Ruby

#a20d24
Notes

Mighty Sagittarius Ruby (#A20D24) is a deep 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 (351°, 85%, 34%) places it in the highly saturated band at a dark 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
#a20d24
RGB
rgb(162, 13, 36)
HSL
hsl(351, 85%, 34%)
HWB
hwb(351 5% 36%)
OKLCH
oklch(45.5% 0.176 22.3)
P3
color(display-p3 0.5819 0.1328 0.1622)
HSV
hsv(351, 92%, 64%)
LAB
lab(34.19% 56.04 30.28)
LCH
lch(34.19% 63.70 28.38)
CMYK
cmyk(0%, 92%, 78%, 36%)

Etymology

Mighty
adjective

Old English mihtig, strong — adjectival suffix -y, sharing root with German mächtig. As a color modifier, mighty implies a saturated-and-strong-presence quality, where the hue commands visual attention through pure pigmentation strength. Sits at the bold-and-saturated end of the grid, parallel to forceful and commanding in tone.

Sagittarius
modifier

Latin sagittarius, archer-of-the-zodiac. As a color modifier, sagittarius implies a centaur-archer-and-fire-sign-and-Jupiter-ruled-mutable-fire quality, the visual register of Hellenic-Sagittarius-and-Chiron-centaur-archer hand-centaur-archer-and-fire-sign-and-Jupiter-ruled-mutable-fire Hellenic-Sagittarius-and-Chiron-centaur-archer-and-galactic-center sagittarius-and-centaur-archer-and-fire-sign surfaces under Hellenic-Sagittarius-and-Chiron-centaur-archer-and-galactic-center late-autumn-and-November-and-December mutable-fire-sign-light. Sits at the modifier-and-zodiac end of the grid, parallel to scorpio and capricorn 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.

#a20d24
Original
#433d23
Protanopia
#665b1e
Deuteranopia
#b30019
Tritanopia
#2e2e2e
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
8.02:1
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
2.62:1

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
##A20D24
Display P3
Display P3
color(display-p3 0.5819 0.1328 0.1622)
P3 has subtle headroomOKLCH chroma 0.176

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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