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Pale Diorite

#171f1a
Notes

Pale Diorite (#171F1A) 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 (143°, 15%, 11%) places it in the muted 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#171f1a
RGB
rgb(23, 31, 26)
HSL
hsl(143, 15%, 11%)
HWB
hwb(143 9% 88%)
OKLCH
oklch(22.9% 0.015 157.6)
P3
color(display-p3 0.0964 0.1207 0.1033)
HSV
hsv(143, 26%, 12%)
LAB
lab(10.83% -4.99 2.22)
LCH
lch(10.83% 5.46 155.98)
CMYK
cmyk(26%, 0%, 16%, 88%)

Etymology

Pale
adjective

From the Latin pallidus, pale, wan — used as a color modifier since the medieval period for hues that read as low-saturation and high-light. Pale pink, pale yellow: low saturation combined with high lightness. Sits at the pale-bucket center alongside light and soft.

Diorite
noun

Greek dioriteīn, to mark off — the deep-cool-gray medium-to-coarse-grained intrusive-igneous rock of batholith emplacement, particularly the Cretaceous-Andean batholithic outcrops of Bolivia-and-Peru. Diorite color refers to a Bolivian-Andes batholithic diorite outcrop face in midday sun: a dark cool-gray with the matte finish of plagioclase-and-amphibole intrusive-igneous medium-grained rock.

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.

#171f1a
Original
#1f1e1a
Protanopia
#1d1d1a
Deuteranopia
#161f1e
Tritanopia
#1d1d1d
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
16.84:1
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
1.25:1

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
##171F1A
Display P3
Display P3
color(display-p3 0.0964 0.1207 0.1033)
Inside sRGBOKLCH chroma 0.015

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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