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Tough Redwood

#197317
Notes

Tough Redwood (#197317) 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 (119°, 67%, 27%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#197317
RGB
rgb(25, 115, 23)
HSL
hsl(119, 67%, 27%)
HWB
hwb(119 9% 55%)
OKLCH
oklch(48.6% 0.150 142.6)
HSV
hsv(119, 80%, 45%)
LAB
lab(42.05% -43.79 40.51)
LCH
lch(42.05% 59.66 137.23)
CMYK
cmyk(78%, 0%, 80%, 55%)

Etymology

Tough
adjective

Old English tōh, firm / tenacious — sharing root with German zäh. As a color modifier, tough implies a saturated-and-resilient quality where the hue resists fading-and-modulation through its strong pigmentation. Sits at the bold-and-resilient end of the grid, parallel to rugged and hardy in usage.

Redwood
noun

Sequoia sempervirens, the coast redwood — the tallest tree species on Earth, native to the coastal fog belt of northern California. Redwood color refers to mature redwood needle foliage: a saturated, slightly cool deep green with the matte finish of fog-adapted needle foliage. Cooler than sequoia.

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.

#197317
Original
#766702
Protanopia
#6c6121
Deuteranopia
#006f62
Tritanopia
#595959
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).
AAon White
5.99:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.51:1

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