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Decisive Bracken

#40971a
Notes

Decisive Bracken (#40971A) is a true green 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 (102°, 71%, 35%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#40971a
RGB
rgb(64, 151, 26)
HSL
hsl(102, 71%, 35%)
HWB
hwb(102 10% 41%)
OKLCH
oklch(60.0% 0.176 138.6)
P3
color(display-p3 0.3443 0.5846 0.1987)
HSV
hsv(102, 83%, 59%)
LAB
lab(55.38% -47.64 52.56)
LCH
lch(55.38% 70.94 132.19)
CMYK
cmyk(58%, 0%, 83%, 41%)

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.

Bracken
noun

Pteridium aquilinum, the cosmopolitan bracken fern — one of the most widespread plants on Earth, dominating the understory of British and European deciduous woodland. Bracken color refers to mature bracken fronds in summer: a saturated, slightly muted deep yellow-green with the matte finish of large pinnate fern.

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.

#40971a
Original
#9c8900
Protanopia
#91822a
Deuteranopia
#379280
Tritanopia
#7b7b7b
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).
AA Largeon White
3.71:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.66:1

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
##40971A
Display P3
Display P3
color(display-p3 0.3443 0.5846 0.1987)
P3 has subtle headroomOKLCH chroma 0.176

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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