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Mighty Sherwood

#28a338
Notes

Mighty Sherwood (#28A338) is a true green with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (128°, 61%, 40%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#28a338
RGB
rgb(40, 163, 56)
HSL
hsl(128, 61%, 40%)
HWB
hwb(128 16% 36%)
OKLCH
oklch(62.8% 0.180 144.8)
HSV
hsv(128, 75%, 64%)
LAB
lab(58.91% -54.59 44.82)
LCH
lch(58.91% 70.63 140.61)
CMYK
cmyk(75%, 0%, 66%, 36%)

Etymology

Mighty
adjective

Old English mihtig, strong — adjectival suffix -y, sharing root with German mächtig. As a color modifier, mighty implies a saturated-and-strong-presence quality, where the hue commands visual attention through pure pigmentation strength. Sits at the bold-and-saturated end of the grid, parallel to forceful and commanding in tone.

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.

#28a338
Original
#a6942b
Protanopia
#988a42
Deuteranopia
#009f8d
Tritanopia
#818181
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
3.29:1
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
6.39:1

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