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Fortified Orbit Crimson

#e81d44
Notes

Fortified Orbit Crimson (#E81D44) 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 (348°, 82%, 51%) 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
#e81d44
RGB
rgb(232, 29, 68)
HSL
hsl(348, 82%, 51%)
HWB
hwb(348 11% 9%)
OKLCH
oklch(59.8% 0.228 19.4)
P3
color(display-p3 0.8356 0.2170 0.2877)
HSV
hsv(348, 88%, 91%)
LAB
lab(50.05% 72.90 33.00)
LCH
lch(50.05% 80.02 24.35)
CMYK
cmyk(0%, 88%, 71%, 9%)

Etymology

Fortified
adjective

Latin fortificāre, to make strong — past-participle of fortify. As a color modifier, fortified implies a saturated-and-strengthened-and-defensive quality, the deep-rich color of Vauban-style military-fortification stone-and-earth rampart-and-bastion architecture. Sits at the bold-and-fortified end of the grid, parallel to bastioned and armored.

Orbit
modifier

Latin orbita, track-or-wheel-rut. As a color modifier, orbit implies a Keplerian-ellipse-and-circling quality, the visual register of Keplerian-ellipse-and-Newton-Principia-orbit hand-Keplerian-ellipse-and-circling Keplerian-ellipse-and-Newton-Principia-and-Tycho-orbit orbit-and-Keplerian-ellipse-and-circling surfaces under Keplerian-ellipse-and-Newton-Principia-and-Tycho-orbit Royal-Society-and-celestial-mechanics 17th-century-observation-light. Sits at the modifier-and-cosmic end of the grid, parallel to axis and parsec in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#e81d44
Original
#635c44
Protanopia
#93863d
Deuteranopia
#ff0030
Tritanopia
#4b4b4b
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).
AA Largeon White
4.48:1
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
4.69:1

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
##E81D44
Display P3
Display P3
color(display-p3 0.8356 0.2170 0.2877)
P3 has visible headroomOKLCH chroma 0.228

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

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