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Indomitable Atlas Forest

#1b8f29
Notes

Indomitable Atlas Forest (#1B8F29) 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 (127°, 68%, 33%) 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
#1b8f29
RGB
rgb(27, 143, 41)
HSL
hsl(127, 68%, 33%)
HWB
hwb(127 11% 44%)
OKLCH
oklch(56.8% 0.171 144.3)
P3
color(display-p3 0.2666 0.5525 0.2217)
HSV
hsv(127, 81%, 56%)
LAB
lab(51.88% -51.35 43.54)
LCH
lch(51.88% 67.32 139.70)
CMYK
cmyk(81%, 0%, 71%, 44%)

Etymology

Indomitable
adjective

Latin indomitābilis, unconquerable — derived from domāre (to tame). As a color modifier, indomitable implies a saturated-and-unconquerable-and-fierce quality where the hue resists any attempt to subdue or modulate its presence. Sits at the bold-and-resilient end of the grid, parallel to unyielding and adamant.

Atlas
modifier

Greek Ἄτλας, Titan-bearing-the-heavens. As a color modifier, atlas implies a Titan-bearing-heaven-and-globe-bearer quality, the visual register of Farnese-Atlas-and-Titanomachy-Atlas hand-Titan-bearing-heaven-and-globe-bearer Farnese-Atlas-and-Titanomachy-Atlas-and-Hellenistic-marble atlas-and-Titan-bearing-heaven surfaces under Farnese-Atlas-and-Titanomachy-Atlas-and-Hellenistic-marble Naples-museum-and-celestial-globe globe-bearer-light. Sits at the modifier-and-myth end of the grid, parallel to titan and zeus in usage.

Forest
noun

The dense canopy of a temperate or tropical woodland — oak, beech, pine, eucalyptus, mahogany — wherever leaves close above to filter the light below. Forest green refers to the average reflectance of a healthy mid-summer canopy seen from below: a saturated, slightly muted green with the matte finish of layered chlorophyll. Deeper than fern, cooler than olive, with the ecological weight of a word that has named every wooded biome on Earth.

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.

#1b8f29
Original
#92811a
Protanopia
#857833
Deuteranopia
#008b7b
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
4.19:1
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
5.01:1

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
##1B8F29
Display P3
Display P3
color(display-p3 0.2666 0.5525 0.2217)
P3 has subtle headroomOKLCH chroma 0.171

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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