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Stoic Gunmetal

#280510
Notes

Stoic Gunmetal (#280510) is a deep 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 (341°, 78%, 9%) places it in the highly saturated band at a dark 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
#280510
RGB
rgb(40, 5, 16)
HSL
hsl(341, 78%, 9%)
HWB
hwb(341 2% 84%)
OKLCH
oklch(18.9% 0.060 4.9)
P3
color(display-p3 0.1415 0.0281 0.0628)
HSV
hsv(341, 88%, 16%)
LAB
lab(5.39% 18.18 1.41)
LCH
lch(5.39% 18.23 4.44)
CMYK
cmyk(0%, 87%, 60%, 84%)

Etymology

Stoic
adjective

Greek stōikós, of-the-Stoa — adjectival suffix -ic, referring to the Stoic-Philosophy of Zeno-of-Citium. As a color modifier, stoic implies a neutral-and-restrained-and-unaffected quality where the hue carries the visual register of Stoic-philosophical unaffected-and-stripped-down color-decision. Sits at the neutral-and-restrained end of the grid, parallel to stoical and reserved in usage.

Gunmetal
noun

The bronze alloy historically used for gun barrels and cannon — copper, tin, and zinc, with the dark patinated finish that gives the color its name. The color refers to a polished gun-bronze surface after weathering: a soft, slightly muted blue-gray with the metallic finish of an oxidized alloy. Cooler than pewter, warmer than steel, with the military-industrial weight of a metal whose name names the working color of nineteenth-century artillery.

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.

#280510
Original
#0c0d10
Protanopia
#16140f
Deuteranopia
#2c0209
Tritanopia
#0d0d0d
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
18.76:1
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
##280510
Display P3
Display P3
color(display-p3 0.1415 0.0281 0.0628)
Inside sRGBOKLCH chroma 0.060

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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