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Dazzling Redwood

#40ac37
Notes

Dazzling Redwood (#40AC37) is a true green 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 (115°, 52%, 45%) 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
#40ac37
RGB
rgb(64, 172, 55)
HSL
hsl(115, 52%, 45%)
HWB
hwb(115 22% 33%)
OKLCH
oklch(65.8% 0.184 142.0)
HSV
hsv(115, 68%, 67%)
LAB
lab(62.40% -53.17 49.20)
LCH
lch(62.40% 72.44 137.22)
CMYK
cmyk(63%, 0%, 68%, 33%)

Etymology

Dazzling
adjective

The progressive participle of dazzle, to overwhelm with brightness — used as a color word since the seventeenth century for hues that read as intense enough to be momentarily blinding. Dazzling white, dazzling pink: the implication is luminance pushed to the extreme. Sits at the bright-bucket extreme alongside electric.

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

Click any swatch to explore

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.

#40ac37
Original
#b09c27
Protanopia
#a39342
Deuteranopia
#2da794
Tritanopia
#8d8d8d
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).
Failon White
2.93:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.17:1

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