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Lionhearted Tannenbaum

#258c0f
Notes

Lionhearted Tannenbaum (#258C0F) 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 (109°, 81%, 30%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#258c0f
RGB
rgb(37, 140, 15)
HSL
hsl(109, 81%, 30%)
HWB
hwb(109 6% 45%)
OKLCH
oklch(56.0% 0.178 141.0)
HSV
hsv(109, 89%, 55%)
LAB
lab(50.90% -50.55 51.06)
LCH
lch(50.90% 71.85 134.71)
CMYK
cmyk(74%, 0%, 89%, 45%)

Etymology

Lionhearted
adjective

Old English lēona-heorte, lion's-heart — referring to Richard I Lionheart (1157–1199). As a color modifier, lionhearted implies a saturated-and-courageous-and-royal quality, the deep-rich color of Crusader-period English Plantagenet-royalty armorial bearings. Sits at the bold-and-chivalrous end of the grid, parallel to valiant and heroic.

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

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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.

#258c0f
Original
#907e00
Protanopia
#847622
Deuteranopia
#078777
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).
AA Largeon White
4.34:1
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
4.84:1

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