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Robust Hosta

#157b1f
Notes

Robust Hosta (#157B1F) 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 (126°, 71%, 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#157b1f
RGB
rgb(21, 123, 31)
HSL
hsl(126, 71%, 28%)
HWB
hwb(126 8% 52%)
OKLCH
oklch(50.9% 0.155 143.9)
HSV
hsv(126, 83%, 48%)
LAB
lab(44.83% -46.44 40.24)
LCH
lch(44.83% 61.45 139.09)
CMYK
cmyk(83%, 0%, 75%, 52%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Hosta
noun

The genus Hosta — East Asian shade-tolerant perennials with broad green leaves, used as a foundation plant in temperate-shade gardens. Hosta color refers to a fresh H. plantaginea leaf: a saturated, slightly cool deep green with the satin finish of broad parallel-veined leaf.

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.

#157b1f
Original
#7d6f0f
Protanopia
#736728
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
5.41:1
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
3.88:1

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