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Sinewy Tannenbaum

#1b7f2b
Notes

Sinewy Tannenbaum (#1B7F2B) is a deep green 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 (130°, 65%, 30%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1b7f2b
RGB
rgb(27, 127, 43)
HSL
hsl(130, 65%, 30%)
HWB
hwb(130 11% 50%)
OKLCH
oklch(52.3% 0.150 145.2)
P3
color(display-p3 0.2393 0.4907 0.2137)
HSV
hsv(130, 79%, 50%)
LAB
lab(46.43% -45.68 36.75)
LCH
lch(46.43% 58.63 141.18)
CMYK
cmyk(79%, 0%, 66%, 50%)

Etymology

Sinewy
adjective

Old English sinu, sinew — adjectival suffix -y. As a color modifier, sinewy implies a saturated-and-muscular-and-firm quality where the hue carries the lean-and-strong visual presence of a Roman-statue athletic figure. Sits at the bold-and-firm end of the grid, parallel to stalwart and rugged in usage.

Tannenbaum
noun

The German word for fir tree — particularly the Abies and Picea trees decorated as Weihnachtsbaum in the German Christmas tradition. Tannenbaum color refers to fresh fir foliage in a Bavarian forest in December: a deep, slightly cool dark green with the resinous finish of conifer needles.

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.

#1b7f2b
Original
#817321
Protanopia
#766b32
Deuteranopia
#007c6d
Tritanopia
#646464
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
5.10:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.12:1

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
##1B7F2B
Display P3
Display P3
color(display-p3 0.2393 0.4907 0.2137)
P3 has subtle headroomOKLCH chroma 0.150

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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