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Sure Goldenseal

#a67618
Notes

Sure Goldenseal (#A67618) is a true amber 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 (40°, 75%, 37%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a67618
RGB
rgb(166, 118, 24)
HSL
hsl(40, 75%, 37%)
HWB
hwb(40 9% 35%)
OKLCH
oklch(60.0% 0.118 78.2)
HSV
hsv(40, 86%, 65%)
LAB
lab(53.09% 10.89 53.97)
LCH
lch(53.09% 55.06 78.59)
CMYK
cmyk(0%, 29%, 86%, 35%)

Etymology

Sure
adjective

Old French seur, certain — used as a color modifier since the medieval period for hues that read as confident and stable. Sure red, sure blue: moderate saturation combined with optical commitment. Sits at the crisp-bucket center alongside steady and true.

Goldenseal
noun

Hydrastis canadensis, the North American medicinal plant whose yellow rhizome has been used in traditional Cherokee and Algonquin medicine for skin conditions and wound healing. The color refers to a freshly cut goldenseal rhizome: a saturated, slightly red-shifted yellow with the matte finish of cut plant tissue. The Atlantic cousin of haldi.

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.

#a67618
Original
#887800
Protanopia
#93841d
Deuteranopia
#b56965
Tritanopia
#797979
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
4.02:1
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
5.23:1

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