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Buttressed Matcha

#689c33
Notes

Buttressed Matcha (#689C33) is a true lime 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 (90°, 51%, 41%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#689c33
RGB
rgb(104, 156, 51)
HSL
hsl(90, 51%, 41%)
HWB
hwb(90 20% 39%)
OKLCH
oklch(63.4% 0.146 132.0)
HSV
hsv(90, 67%, 61%)
LAB
lab(58.94% -34.84 47.67)
LCH
lch(58.94% 59.04 126.16)
CMYK
cmyk(33%, 0%, 67%, 39%)

Etymology

Buttressed
adjective

Old French bouterez, thrusting-mass — past-participle of buttress, derived from bouter (to thrust). As a color modifier, buttressed implies a saturated-and-architecturally-supported quality, the deep-rich color of Gothic-Cathedral flying-buttress-and-rib-vault stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and reinforced.

Matcha
noun

The shade-grown, stone-ground green tea of the Japanese tea ceremony — leaves of Camellia sinensis covered for weeks before harvest to concentrate chlorophyll, then powdered in a granite mill. The color refers to ceremonial-grade matcha whisked in hot water: a saturated, slightly muted green with the powdery finish of micron-scale leaf particles. Brighter than sage, deeper than lime, with the meditative weight of a 600-year-old practice.

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.

#689c33
Original
#a39025
Protanopia
#9b8c3c
Deuteranopia
#699687
Tritanopia
#898989
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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