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Praetorian Orion Rose

#e02c21
Notes

Praetorian Orion Rose (#E02C21) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (3°, 75%, 50%) 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
#e02c21
RGB
rgb(224, 44, 33)
HSL
hsl(3, 75%, 50%)
HWB
hwb(3 13% 12%)
OKLCH
oklch(58.8% 0.216 29.1)
P3
color(display-p3 0.8080 0.2455 0.1842)
HSV
hsv(3, 85%, 88%)
LAB
lab(49.21% 66.47 50.79)
LCH
lch(49.21% 83.66 37.38)
CMYK
cmyk(0%, 80%, 85%, 12%)

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.

Orion
modifier

Greek Ὠρίων, hunter-of-the-myth. As a color modifier, orion implies a winter-hunter-and-belt-and-shoulder quality, the visual register of winter-Orion-and-Belt-of-Orion hand-winter-hunter-and-belt-and-shoulder winter-Orion-and-Belt-of-Orion-and-Bortle-1-sky orion-and-winter-hunter-and-belt-and-shoulder surfaces under winter-Orion-and-Belt-of-Orion-and-Bortle-1-sky January-and-February-winter-zenith winter-constellation-light. Sits at the modifier-and-cosmic end of the grid, parallel to rigel and cygnus in usage.

Rose
noun

The Latin rosa, the Greek rhodon, the Persian gul — every European language has a different name for the same flower and the same color. Rose covers the spectrum from blush to fuchsia depending on the cultivar, but in pigment shorthand it means a cool, slightly bluish red — the inside of a damask petal, the dye that washes out of madder root.

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.

#e02c21
Original
#675c1c
Protanopia
#938314
Deuteranopia
#f7002c
Tritanopia
#515151
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
4.61:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.55:1

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
##E02C21
Display P3
Display P3
color(display-p3 0.8080 0.2455 0.1842)
P3 has visible headroomOKLCH chroma 0.216

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