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Smoldering Sakura

#a40430
Notes

Smoldering Sakura (#A40430) 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 (344°, 95%, 33%) 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
#a40430
RGB
rgb(164, 4, 48)
HSL
hsl(344, 95%, 33%)
HWB
hwb(344 2% 36%)
OKLCH
oklch(45.7% 0.181 17.2)
HSV
hsv(344, 98%, 64%)
LAB
lab(34.39% 58.25 23.03)
LCH
lch(34.39% 62.64 21.58)
CMYK
cmyk(0%, 98%, 71%, 36%)

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.

Sakura
noun

The flowering cherry — Prunus serrulata — and the unifying spring color of Japanese aesthetic life. The color refers to a somei-yoshino cherry in full bloom: a soft, slightly cool pale red-pink with the matte finish of five-petaled bloom. Lighter than rose, cooler than coral, with the ephemeral weight of a flower whose two-week bloom defines an entire season's poetry.

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.

#a40430
Original
#403d30
Protanopia
#655c2b
Deuteranopia
#b5001c
Tritanopia
#292929
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
7.96:1
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
2.64:1

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