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Praetorian Charm Ruby

#dc1e0b
Notes

Praetorian Charm Ruby (#DC1E0B) is a true red with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (5°, 90%, 45%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#dc1e0b
RGB
rgb(220, 30, 11)
HSL
hsl(5, 90%, 45%)
HWB
hwb(5 4% 14%)
OKLCH
oklch(57.1% 0.221 30.2)
P3
color(display-p3 0.7923 0.2100 0.1344)
HSV
hsv(5, 95%, 86%)
LAB
lab(47.20% 68.18 57.49)
LCH
lch(47.20% 89.18 40.14)
CMYK
cmyk(0%, 86%, 95%, 14%)

Etymology

Praetorian
adjective

Latin praetōriānus, of the praetor — adjectival suffix, referring to the Roman-Imperial elite guard-cohorts. As a color modifier, praetorian implies a saturated-and-elite-and-imperial-guard quality, the deep-rich color of Roman-Praetorian-Guard elite-imperial-bodyguard scarlet-tunic-and-bronze-armor military-formation. Sits at the bold-and-formal end of the grid, parallel to spartan and imperial.

Charm
modifier

Latin carmen, song-or-spell. As a color modifier, charm implies a beguiling-and-enchanted-and-disarming quality, the visual register of Provençal-troubadour-and-Renaissance-courtly-charm hand-beguiling-and-enchanted-and-disarming Provençal-troubadour-and-Renaissance-courtly-and-Belle-Époque-salon charmed-and-beguiling-and-enchanted-and-disarming surfaces under Provençal-troubadour-and-Renaissance-courtly-and-Belle-Époque-salon candlelit-and-rose-scented-and-disarming drawing-room-light. Sits at the modifier-and-mood end of the grid, parallel to grace and blithe 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.

#dc1e0b
Original
#625600
Protanopia
#8f7e00
Deuteranopia
#f3001f
Tritanopia
#454545
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
4.96:1
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
4.23:1

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
##DC1E0B
Display P3
Display P3
color(display-p3 0.7923 0.2100 0.1344)
P3 has visible headroomOKLCH chroma 0.221

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

Canvas