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Smoldering Roseate

#c5178e
Notes

Smoldering Roseate (#C5178E) is a true magenta with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (319°, 79%, 43%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#c5178e
RGB
rgb(197, 23, 142)
HSL
hsl(319, 79%, 43%)
HWB
hwb(319 9% 23%)
OKLCH
oklch(55.5% 0.224 345.9)
HSV
hsv(319, 88%, 77%)
LAB
lab(44.86% 71.23 -20.55)
LCH
lch(44.86% 74.14 343.91)
CMYK
cmyk(0%, 88%, 28%, 23%)

Etymology

Smoldering
adjective

The progressive participle of smolder, to burn slowly without flame. Used as a color word since the late nineteenth century for the deep reds and oranges of barely-flame coal — the warm saturated darks where the heat is internal rather than emitted. Sits in the bold-and-warm corner, slightly less luminous than burning and slightly less calm than rich.

Roseate
noun

Latin rosātus, rosy — adopted into English for any naturally pink-magenta colored phenomenon, particularly the roseate spoonbill (Platalea ajaja) of Florida and Caribbean coastal wetlands. Roseate color refers to a Platalea ajaja breast-and-shoulder feather field in late-afternoon light: a saturated, slightly cool deep magenta with the velvet finish of carotenoid-pigmented feather barbs over melanin-substrate flight feathers.

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

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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.

#c5178e
Original
#375891
Protanopia
#6c748a
Deuteranopia
#d30d55
Tritanopia
#454545
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).
AAon White
5.40:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.89:1

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