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Buttressed Juniper

#18a136
Notes

Buttressed Juniper (#18A136) 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 (133°, 74%, 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
#18a136
RGB
rgb(24, 161, 54)
HSL
hsl(133, 74%, 36%)
HWB
hwb(133 9% 37%)
OKLCH
oklch(61.9% 0.183 145.6)
P3
color(display-p3 0.2950 0.6220 0.2707)
HSV
hsv(133, 85%, 63%)
LAB
lab(57.99% -56.21 44.60)
LCH
lch(57.99% 71.75 141.56)
CMYK
cmyk(85%, 0%, 66%, 37%)

Etymology

Buttressed
adjective

Old French bouterez, thrusting-mass — past-participle of buttress, derived from bouter (to thrust). As a color modifier, buttressed implies a saturated-and-architecturally-supported quality, the deep-rich color of Gothic-Cathedral flying-buttress-and-rib-vault stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and reinforced.

Juniper
noun

The genus Juniperus, evergreen shrubs and trees whose fleshy berries — actually fleshy cones — flavor gin and Scandinavian sauerkraut. The color refers to the foliage of a mature juniper: a deep, slightly muted green with the matte finish of scale leaves and resinous waxes. Drabber than spruce, warmer than fir, with the alpine association of a plant that can grow at higher elevation than almost any other tree.

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.

#18a136
Original
#a49128
Protanopia
#958740
Deuteranopia
#009d8b
Tritanopia
#7c7c7c
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
3.39:1
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
6.19:1

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
##18A136
Display P3
Display P3
color(display-p3 0.2950 0.6220 0.2707)
P3 has visible headroomOKLCH chroma 0.183

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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