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Robust Kuchinashi

#bb3a0b
Notes

Robust Kuchinashi (#BB3A0B) is a true orange with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (16°, 89%, 39%) 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
#bb3a0b
RGB
rgb(187, 58, 11)
HSL
hsl(16, 89%, 39%)
HWB
hwb(16 4% 27%)
OKLCH
oklch(53.4% 0.173 37.0)
P3
color(display-p3 0.6772 0.2657 0.1263)
HSV
hsv(16, 94%, 73%)
LAB
lab(43.68% 50.07 52.11)
LCH
lch(43.68% 72.27 46.14)
CMYK
cmyk(0%, 69%, 94%, 27%)

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.

Kuchinashi
noun

Gardenia jasminoides — the gardenia plant, whose dried fruit yields a yellow-orange dye used in Japanese textile and food coloring (yellow rice, pickled radish). Kuchinashi-iro refers to a soft, slightly muted gold-orange. The color is kuchinashi-dyed silk: a warm, slightly muted yellow-orange with the matte finish of plant-derived pigment. Cooler than saffron, drier than goldenrod.

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.

#bb3a0b
Original
#615500
Protanopia
#817200
Deuteranopia
#ce0333
Tritanopia
#525252
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
5.64:1
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
3.72:1

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
##BB3A0B
Display P3
Display P3
color(display-p3 0.6772 0.2657 0.1263)
P3 has subtle headroomOKLCH chroma 0.173

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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