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Infernal Ivy

#123d15
Notes

Infernal Ivy (#123D15) is a deep green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (124°, 54%, 15%) 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
#123d15
RGB
rgb(18, 61, 21)
HSL
hsl(124, 54%, 15%)
HWB
hwb(124 7% 76%)
OKLCH
oklch(31.9% 0.082 144.5)
P3
color(display-p3 0.1192 0.2356 0.1018)
HSV
hsv(124, 70%, 24%)
LAB
lab(22.02% -24.61 20.06)
LCH
lch(22.02% 31.75 140.81)
CMYK
cmyk(70%, 0%, 66%, 76%)

Etymology

Infernal
adjective

Latin infernālis, of the lower realms — derived from infernus (underworld). As a color modifier, infernal implies the deep-glowing-furnace-darkness of Dante-Inferno-and-Bosch-tryptich infernal imagery, with the warm undertone of fire-light against shadow. Sits at the deep-and-warm end of the grid, parallel to hellish and warmer than Hadean.

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

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.

#123d15
Original
#3e3711
Protanopia
#393318
Deuteranopia
#093b34
Tritanopia
#313131
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).
AAAon White
12.32:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.70:1

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
##123D15
Display P3
Display P3
color(display-p3 0.1192 0.2356 0.1018)
P3 has subtle headroomOKLCH chroma 0.082

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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