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Spartan Aquarius Ruby

#a11723
Notes

Spartan Aquarius Ruby (#A11723) 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 (355°, 75%, 36%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a11723
RGB
rgb(161, 23, 35)
HSL
hsl(355, 75%, 36%)
HWB
hwb(355 9% 37%)
OKLCH
oklch(45.7% 0.171 23.8)
P3
color(display-p3 0.5791 0.1522 0.1601)
HSV
hsv(355, 86%, 63%)
LAB
lab(34.63% 53.82 31.30)
LCH
lch(34.63% 62.27 30.18)
CMYK
cmyk(0%, 86%, 78%, 37%)

Etymology

Spartan
adjective

Greek Spartiátēs, of Sparta — adjectival suffix referring to the Lacedaemonian warrior city. As a color modifier, spartan implies a saturated-and-disciplined-and-formal quality, the deep-rich color of Spartan-hoplite military-class crimson-and-bronze armor-and-cloak. Sits at the bold-and-formal end of the grid, parallel to austere and stern in tone.

Aquarius
modifier

Latin aquarius, water-bearer-of-the-zodiac. As a color modifier, aquarius implies a water-bearer-and-air-sign-and-Saturn-Uranus-ruled-fixed-air quality, the visual register of Hellenic-Aquarius-and-Ganymede-water-bearer hand-water-bearer-and-air-sign-and-Saturn-Uranus-ruled-fixed-air Hellenic-Aquarius-and-Ganymede-water-bearer-and-cup-bearer aquarius-and-water-bearer-and-air-sign surfaces under Hellenic-Aquarius-and-Ganymede-water-bearer-and-cup-bearer mid-winter-and-January-and-February fixed-air-sign-light. Sits at the modifier-and-zodiac end of the grid, parallel to pisces 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.

#a11723
Original
#453f22
Protanopia
#675c1d
Deuteranopia
#b2001e
Tritanopia
#353535
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
7.89:1
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
2.66:1

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
##A11723
Display P3
Display P3
color(display-p3 0.5791 0.1522 0.1601)
P3 has subtle headroomOKLCH chroma 0.171

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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