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Lionhearted Sherwood

#378e03
Notes

Lionhearted Sherwood (#378E03) is a deep lime 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 (98°, 96%, 28%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#378e03
RGB
rgb(55, 142, 3)
HSL
hsl(98, 96%, 28%)
HWB
hwb(98 1% 44%)
OKLCH
oklch(57.1% 0.176 138.3)
HSV
hsv(98, 98%, 56%)
LAB
lab(52.02% -47.60 54.39)
LCH
lch(52.02% 72.28 131.19)
CMYK
cmyk(61%, 0%, 98%, 44%)

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.

Sherwood
noun

The Nottinghamshire forest — and the dark green of Sherwood-style hooded tunics worn by Robin Hood and his Merry Men in English folklore. Sherwood refers to the deep green of mature English oak woodland: a deep, slightly cool dark green with the matte finish of dense canopy understory.

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.

#378e03
Original
#938000
Protanopia
#88791d
Deuteranopia
#2e8978
Tritanopia
#717171
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
4.17:1
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
5.03:1

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