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Useful Pecan

#644715
Notes

Useful Pecan (#644715) is a deep 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 (38°, 65%, 24%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#644715
RGB
rgb(100, 71, 21)
HSL
hsl(38, 65%, 24%)
HWB
hwb(38 8% 61%)
OKLCH
oklch(42.0% 0.076 77.1)
P3
color(display-p3 0.3750 0.2831 0.1208)
HSV
hsv(38, 79%, 39%)
LAB
lab(32.42% 7.14 33.39)
LCH
lch(32.42% 34.14 77.92)
CMYK
cmyk(0%, 29%, 79%, 61%)

Etymology

Useful
adjective

Latin ūsus, use — adjectival suffix -ful. As a color modifier, useful implies a clear-and-purpose-serving quality where the hue carries the visual register of helpful-and-supporting design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and serviceable in usage.

Pecan
noun

Carya illinoinensis, a North American hickory whose nut was a staple of pre-Columbian diet across the Mississippi watershed. The English name traces to the Algonquian pakani. The color refers to the meat of a shelled pecan: a warm, slightly red-toned tan with the matte finish of dried plant tissue. Warmer than almond, more saturated than walnut, with the autumn-orchard sweetness implied by the word.

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.

#644715
Original
#52480e
Protanopia
#594f17
Deuteranopia
#6d3f3d
Tritanopia
#4a4a4a
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).
AAAon White
8.56:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.45:1

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
##644715
Display P3
Display P3
color(display-p3 0.3750 0.2831 0.1208)
Inside sRGBOKLCH chroma 0.076

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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