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Sure Pecan

#634d03
Notes

Sure Pecan (#634D03) 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 (46°, 94%, 20%) places it in the highly saturated band at a dark 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#634d03
RGB
rgb(99, 77, 3)
HSL
hsl(46, 94%, 20%)
HWB
hwb(46 1% 61%)
OKLCH
oklch(43.1% 0.087 89.4)
P3
color(display-p3 0.3747 0.3053 0.0885)
HSV
hsv(46, 97%, 39%)
LAB
lab(33.92% 2.28 41.40)
LCH
lch(33.92% 41.46 86.85)
CMYK
cmyk(0%, 22%, 97%, 61%)

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.

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.

#634d03
Original
#584c00
Protanopia
#5d5209
Deuteranopia
#6c4541
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).
AAAon White
8.10:1
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
2.59:1

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
##634D03
Display P3
Display P3
color(display-p3 0.3747 0.3053 0.0885)
P3 has subtle headroomOKLCH chroma 0.087

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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