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Glowering Geranium

#731f0e
Notes

Glowering Geranium (#731F0E) 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 (10°, 78%, 25%) 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
#731f0e
RGB
rgb(115, 31, 14)
HSL
hsl(10, 78%, 25%)
HWB
hwb(10 5% 55%)
OKLCH
oklch(37.3% 0.121 33.2)
HSV
hsv(10, 88%, 45%)
LAB
lab(25.74% 35.89 31.33)
LCH
lch(25.74% 47.64 41.12)
CMYK
cmyk(0%, 73%, 88%, 55%)

Etymology

Glowering
adjective

Middle English gloweren, to stare angrily — present-participle of glower, sharing root with glower and gloom. As a color modifier, glowering implies a deep-and-warm-and-glowering-resentful quality, the dark warm-orange of furnace-mouth-and-Volcanic-vent embered glow. Sits at the deep-and-warm end of the grid, parallel to smouldered and hellish.

Geranium
noun

The genus Pelargonium (commonly called geraniums in English horticulture) — particularly P. zonale and P. peltatum, the bright red-flowered geraniums of European balconies and hanging baskets. The color refers to a fresh red geranium bloom in summer: a saturated, slightly orange red with the matte finish of small clustered five-petaled flowers. Brighter than scarlet, warmer than tomato.

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.

#731f0e
Original
#38310b
Protanopia
#4d4409
Deuteranopia
#7f001c
Tritanopia
#303030
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
10.87:1
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
1.93:1

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