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Open Marzipan

#ad640a
Notes

Open Marzipan (#AD640A) 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 (33°, 89%, 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ad640a
RGB
rgb(173, 100, 10)
HSL
hsl(33, 89%, 36%)
HWB
hwb(33 4% 32%)
OKLCH
oklch(57.4% 0.129 62.1)
P3
color(display-p3 0.6393 0.4060 0.1479)
HSV
hsv(33, 94%, 68%)
LAB
lab(49.52% 23.85 55.27)
LCH
lch(49.52% 60.19 66.65)
CMYK
cmyk(0%, 42%, 94%, 32%)

Etymology

Open
adjective

Old English open, unobstructed — used as a color modifier since the eighteenth century for hues that read as airy or uncrowded. Open blue, open green: moderate saturation combined with optical spaciousness, the slight visual breath of a hue that doesn't crowd the surface it covers. Sits at the crisp-bucket center alongside clear.

Marzipan
noun

The almond-and-sugar paste used in European confectionery since at least the medieval period — central to Lübeck's confectionery tradition and the Italian frutta martorana of Sicilian Easter. The color refers to fresh marzipan paste: a soft, slightly warm pale yellow with the matte finish of almond-flour-and-sugar paste.

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.

#ad640a
Original
#7b6b00
Protanopia
#8c7c0b
Deuteranopia
#be5355
Tritanopia
#6d6d6d
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
4.56:1
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
4.60:1

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
##AD640A
Display P3
Display P3
color(display-p3 0.6393 0.4060 0.1479)
P3 has subtle headroomOKLCH chroma 0.129

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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