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Ironclad Bergamot Emerald

#17a24e
Notes

Ironclad Bergamot Emerald (#17A24E) is a true 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 (144°, 75%, 36%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#17a24e
RGB
rgb(23, 162, 78)
HSL
hsl(144, 75%, 36%)
HWB
hwb(144 9% 36%)
OKLCH
oklch(62.5% 0.165 150.2)
P3
color(display-p3 0.2958 0.6259 0.3418)
HSV
hsv(144, 86%, 64%)
LAB
lab(58.58% -53.38 33.87)
LCH
lch(58.58% 63.21 147.61)
CMYK
cmyk(86%, 0%, 52%, 36%)

Etymology

Ironclad
adjective

English compound iron + clad — referring to the 19th-century USS-Monitor and CSS-Virginia iron-armored warships. As a color modifier, ironclad implies a saturated-and-armored-and-impenetrable quality where the hue carries the visual weight of forged-iron armor-plate. Sits at the bold-and-fortified end of the grid, parallel to fortified and armored.

Bergamot
modifier

Italian bergamotta, Calabrian-citrus-and-Earl-Grey-tea. As a color modifier, bergamot implies a Calabrian-citrus-and-Earl-Grey-tea quality, the visual register of Calabrian-bergamot-and-Earl-Grey-tea hand-Calabrian-citrus-and-Earl-Grey-tea Calabrian-bergamot-and-Earl-Grey-tea-and-Reggio-di-Calabria bergamot-and-Calabrian-citrus surfaces under Calabrian-bergamot-and-Earl-Grey-tea-and-Reggio-di-Calabria Reggio-di-Calabria-and-Twinings-Earl-Grey Calabrian-and-tea-light. Sits at the modifier-and-flavor end of the grid, parallel to zest and balm in usage.

Emerald
noun

A chromium-tinged variety of beryl — the gemstone mined from the Cleopatra-era Mons Smaragdus in Egypt, the Muzo deposits of Colombia, and the Sandawana mines of Zimbabwe. Emerald green refers to a high-clarity faceted emerald with strong color saturation: a saturated, slightly blue-shifted green with the gem's signature internal life. Cooler than fern, warmer than teal, with the heraldic weight of two thousand years of royal favor.

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.

#17a24e
Original
#a39347
Protanopia
#948954
Deuteranopia
#009f8f
Tritanopia
#7e7e7e
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
3.33:1
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
6.31:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##17A24E
Display P3
Display P3
color(display-p3 0.2958 0.6259 0.3418)
P3 has subtle headroomOKLCH chroma 0.165

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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