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Decisive Spessartine

#b53501
Notes

Decisive Spessartine (#B53501) is a true orange 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 (17°, 99%, 36%) 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
#b53501
RGB
rgb(181, 53, 1)
HSL
hsl(17, 99%, 36%)
HWB
hwb(17 0% 29%)
OKLCH
oklch(51.7% 0.172 37.2)
P3
color(display-p3 0.6548 0.2472 0.1046)
HSV
hsv(17, 99%, 71%)
LAB
lab(41.81% 49.89 53.42)
LCH
lch(41.81% 73.09 46.95)
CMYK
cmyk(0%, 71%, 99%, 29%)

Etymology

Decisive
adjective

From the Latin decidere, to cut off — used as a modifier for colors that read as firm and final. Decisive black, decisive red: the implication is that the color has settled on its position and won't drift. Sits in the bold-bucket corner alongside resolute, with a slightly sharper edge.

Spessartine
noun

A manganese-aluminum garnet — orange to red-orange in color, mined principally in Namibia, Mozambique, and California. Spessartine takes its name from the Spessart region of Germany. The color refers to a faceted Namibian spessartine: a saturated, slightly red orange with the gem's signature internal life. Brighter than hessonite.

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.

#b53501
Original
#5c5000
Protanopia
#7c6d00
Deuteranopia
#c8002e
Tritanopia
#4c4c4c
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
6.04:1
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
3.47:1

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
##B53501
Display P3
Display P3
color(display-p3 0.6548 0.2472 0.1046)
P3 has subtle headroomOKLCH chroma 0.172

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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