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Armored Spring

#258b34
Notes

Armored Spring (#258B34) 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 (129°, 58%, 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
#258b34
RGB
rgb(37, 139, 52)
HSL
hsl(129, 58%, 35%)
HWB
hwb(129 15% 45%)
OKLCH
oklch(56.0% 0.155 145.3)
HSV
hsv(129, 73%, 55%)
LAB
lab(50.81% -47.19 37.52)
LCH
lch(50.81% 60.29 141.51)
CMYK
cmyk(73%, 0%, 63%, 45%)

Etymology

Armored
adjective

Old French armëure, armor — past-participle of armor, derived from Latin arma (weapons). As a color modifier, armored implies a saturated-and-armor-clad-and-defensive quality, the deep-rich color of medieval-knight full-plate-armor visible-and-formidable battle-presence. Sits at the bold-and-fortified end of the grid, parallel to ironclad and shielded.

Spring
noun

The season — and the color of the new chlorophyll that appears with it. Spring green refers to the saturated, slightly yellow-shifted green of a temperate-zone canopy in early May: a clean, optically bright green with the translucent quality of new leaf tissue against the sun. Cooler than chartreuse, lighter than fern, with the seasonal optimism of a color that lasts only the few weeks before summer settles in.

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.

#258b34
Original
#8d7e2a
Protanopia
#81763b
Deuteranopia
#008778
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
4.36:1
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
4.82:1

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