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Confident Yule Forest

#278b28
Notes

Confident Yule Forest (#278B28) 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 (121°, 56%, 35%) 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
#278b28
RGB
rgb(39, 139, 40)
HSL
hsl(121, 56%, 35%)
HWB
hwb(121 15% 45%)
OKLCH
oklch(56.0% 0.163 143.1)
HSV
hsv(121, 72%, 55%)
LAB
lab(50.74% -48.15 42.83)
LCH
lch(50.74% 64.44 138.35)
CMYK
cmyk(72%, 0%, 71%, 45%)

Etymology

Confident
adjective

A late-Latin participle, confidens, trusting — borrowed into English in the sixteenth century. As a color modifier, confident implies saturation combined with poise: a confident red doesn't try too hard, just sits at the level of its hue without overreaching. Sits in the bold-bucket center near bold and resolute.

Yule
modifier

Old Norse jól, winter-solstice. As a color modifier, yule implies a winter-solstice-and-fir-tree quality, the visual register of Norse-and-English winter-solstice fir-and-holly-and-mistletoe candlelit-firelight feast-and-greenery surfaces under deep-winter Northern-Hemisphere late-December candlelight. Sits at the modifier-and-time end of the grid, parallel to advent and easter in usage.

Forest
noun

The dense canopy of a temperate or tropical woodland — oak, beech, pine, eucalyptus, mahogany — wherever leaves close above to filter the light below. Forest green refers to the average reflectance of a healthy mid-summer canopy seen from below: a saturated, slightly muted green with the matte finish of layered chlorophyll. Deeper than fern, cooler than olive, with the ecological weight of a word that has named every wooded biome on Earth.

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.

#278b28
Original
#8e7e19
Protanopia
#827632
Deuteranopia
#068777
Tritanopia
#6f6f6f
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
4.37:1
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
4.81:1

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