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Authoritative Baldr Forest

#138c2c
Notes

Authoritative Baldr Forest (#138C2C) 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 (132°, 76%, 31%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#138c2c
RGB
rgb(19, 140, 44)
HSL
hsl(132, 76%, 31%)
HWB
hwb(132 7% 45%)
OKLCH
oklch(55.9% 0.167 145.4)
P3
color(display-p3 0.2526 0.5408 0.2267)
HSV
hsv(132, 86%, 55%)
LAB
lab(50.78% -50.99 41.05)
LCH
lch(50.78% 65.47 141.16)
CMYK
cmyk(86%, 0%, 69%, 45%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Baldr
modifier

Old Norse Baldr, fair-and-shining-god-of-light. As a color modifier, baldr implies a fair-and-shining-god-of-light quality, the visual register of Norse-Baldr-and-Breidablik-hall hand-fair-and-shining-god-of-light Norse-Baldr-and-Breidablik-hall-and-mistletoe-fall baldr-and-fair-and-shining-god-of-light surfaces under Norse-Baldr-and-Breidablik-hall-and-mistletoe-fall Asgard-pantheon-and-Hel-descent fair-radiance-light. Sits at the modifier-and-myth end of the grid, parallel to odin and freya 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.

#138c2c
Original
#8e7e1f
Protanopia
#827535
Deuteranopia
#008878
Tritanopia
#6b6b6b
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

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
##138C2C
Display P3
Display P3
color(display-p3 0.2526 0.5408 0.2267)
P3 has subtle headroomOKLCH chroma 0.167

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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