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Regional Chimney

#240203
Notes

Regional Chimney (#240203) 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 (358°, 89%, 7%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#240203
RGB
rgb(36, 2, 3)
HSL
hsl(358, 89%, 7%)
HWB
hwb(358 1% 86%)
OKLCH
oklch(16.9% 0.061 24.2)
P3
color(display-p3 0.1264 0.0151 0.0152)
HSV
hsv(358, 94%, 14%)
LAB
lab(3.84% 14.82 4.79)
LCH
lch(3.84% 15.57 17.93)
CMYK
cmyk(0%, 94%, 92%, 86%)

Etymology

Regional
adjective

Latin regiōnālis, of-a-region — adjectival suffix -al. As a color modifier, regional implies a neutral-and-local-and-traditional quality, the neutral color of Provençal-and-Tuscan-and-Catalan regional-and-local-tradition interior-decoration-and-textile traditional-craft surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to provincial and vernacular in usage.

Chimney
noun

Old English chimene, cooking pot via Latin caminus, furnace — the deep-soot-black interior of Northern European stone hearths, where the bone-black and lampblack sediment accumulates over generations. Chimney color refers to a freshly soot-coated Brontë-period Yorkshire-cottage chimney-throat in raking light: a saturated, slightly cool deep black with the matte finish of multi-decade soot-and-creosote sediment on hand-cut millstone hearthstone.

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.

#240203
Original
#0a0903
Protanopia
#141102
Deuteranopia
#290003
Tritanopia
#090909
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
19.35:1
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
1.09:1

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
##240203
Display P3
Display P3
color(display-p3 0.1264 0.0151 0.0152)
Inside sRGBOKLCH chroma 0.061

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.

Related Colors

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