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Robust Sakura

#b5120f
Notes

Robust Sakura (#B5120F) is a true 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 (1°, 85%, 38%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b5120f
RGB
rgb(181, 18, 15)
HSL
hsl(1, 85%, 38%)
HWB
hwb(1 6% 29%)
OKLCH
oklch(49.2% 0.193 28.7)
HSV
hsv(1, 92%, 71%)
LAB
lab(38.37% 59.86 46.66)
LCH
lch(38.37% 75.90 37.94)
CMYK
cmyk(0%, 90%, 92%, 29%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

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

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.

#b5120f
Original
#4e440a
Protanopia
#746600
Deuteranopia
#c80016
Tritanopia
#343434
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
6.87:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.06:1

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