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Pure Ivy

#177a29
Notes

Pure Ivy (#177A29) 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 (131°, 68%, 28%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#177a29
RGB
rgb(23, 122, 41)
HSL
hsl(131, 68%, 28%)
HWB
hwb(131 9% 52%)
OKLCH
oklch(50.8% 0.146 145.5)
HSV
hsv(131, 81%, 48%)
LAB
lab(44.60% -44.76 35.63)
LCH
lch(44.60% 57.21 141.48)
CMYK
cmyk(81%, 0%, 66%, 52%)

Etymology

Pure
adjective

Latin purus, clean, unmixed — applied to color since antiquity for hues that contain only one pigment without dilution by white, black, or another color. Pure red is the textbook ideal: high saturation, mid lightness, no shift. Sits at the bold-bucket center, parallel to true and strong.

Ivy
noun

The genus Hedera, the evergreen climbing vines of European woodland — English ivy, Algerian ivy, Persian ivy — colonizers of stone walls, oak trunks, and any abandoned masonry. The color refers to mature ivy leaves on a south-facing wall: a deep, glossy green with the high specular shine of waxy cuticle. Darker than spinach, cooler than holly, with the architectural association of a plant that wraps human structures back into landscape.

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.

#177a29
Original
#7c6e1f
Protanopia
#716730
Deuteranopia
#007769
Tritanopia
#5f5f5f
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
5.45:1
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
3.85:1

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