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Cold Rampart

#220a09
Notes

Cold Rampart (#220A09) is a deep red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (2°, 58%, 8%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#220a09
RGB
rgb(34, 10, 9)
HSL
hsl(2, 58%, 8%)
HWB
hwb(2 4% 87%)
OKLCH
oklch(18.4% 0.042 24.5)
P3
color(display-p3 0.1215 0.0446 0.0385)
HSV
hsv(2, 74%, 13%)
LAB
lab(5.21% 11.03 4.31)
LCH
lch(5.21% 11.84 21.36)
CMYK
cmyk(0%, 71%, 74%, 87%)

Etymology

Cold
adjective

Old English ceald, of low temperature — used as a color modifier since the medieval period for hues with a slight blue or blue-green shift, even within otherwise neutral grays. Cold gray, cold white: the optical impression of a low-temperature reflective surface. Sits in the neutral-and-cool corner alongside icy.

Rampart
noun

Old French rampart, defensive-wall — the deep-cool-gray fortified outer-wall of medieval-and-Renaissance European fortress architecture, particularly the Saint-Malo and Aigues-Mortes sea-port ramparts. Rampart color refers to a Saint-Malo outer-rampart face at high-tide: a dark cool-gray with the matte finish of Cap-Fréhel granite hand-quarried fortification stone with multi-decade saltwater-and-lichen patina.

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.

#220a09
Original
#100e09
Protanopia
#161309
Deuteranopia
#26070a
Tritanopia
#0f0f0f
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
18.83:1
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
1.12:1

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
##220A09
Display P3
Display P3
color(display-p3 0.1215 0.0446 0.0385)
Inside sRGBOKLCH chroma 0.042

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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