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Smooth Spruce

#33702f
Notes

Smooth Spruce (#33702F) is a deep green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (116°, 41%, 31%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#33702f
RGB
rgb(51, 112, 47)
HSL
hsl(116, 41%, 31%)
HWB
hwb(116 18% 56%)
OKLCH
oklch(48.9% 0.116 142.4)
HSV
hsv(116, 58%, 44%)
LAB
lab(42.00% -33.89 29.85)
LCH
lch(42.00% 45.16 138.63)
CMYK
cmyk(54%, 0%, 58%, 56%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Spruce
noun

The genus Picea, the spruces of the boreal and montane forests — Sitka, Norway, blue, white, black — the conifer that frames timberline across the northern hemisphere. The color refers to fresh spruce needles: a deep, slightly blue-shifted green with the matte finish of resin-coated foliage. Cooler than fern, warmer than teal, with the resinous cold-air association of a high-altitude or high-latitude evergreen.

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

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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.

#33702f
Original
#726629
Protanopia
#6a6134
Deuteranopia
#2b6d61
Tritanopia
#5e5e5e
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
6.00:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.50:1

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