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Sylvan Plomo

#1f013b
Notes

Sylvan Plomo (#1F013B) is a deep indigo 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 (271°, 97%, 12%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1f013b
RGB
rgb(31, 1, 59)
HSL
hsl(271, 97%, 12%)
HWB
hwb(271 0% 77%)
OKLCH
oklch(19.8% 0.102 301.2)
P3
color(display-p3 0.1081 0.0097 0.2211)
HSV
hsv(271, 98%, 23%)
LAB
lab(5.68% 28.09 -30.12)
LCH
lch(5.68% 41.19 313.00)
CMYK
cmyk(47%, 98%, 0%, 77%)

Etymology

Sylvan
adjective

Latin silvānus, of-the-woods — adjectival suffix -an, derived from silva (forest). As a color modifier, sylvan implies a neutral-and-forest-and-woodland quality, the neutral color of English-and-Welsh deciduous-and-mixed-forest woodland-walking-and-ramble pastoral-and-natural color tone. Sits at the neutral-and-traditional end of the grid, parallel to bucolic and pastoral in usage.

Plomo
noun

Spanish plomo, lead — adopted into Spanish color terminology for the deep-lead-gray of Madrileño foundry-cast metallurgical lead. Plomo color refers to a Toledo-foundry freshly cast lead ingot in raking light: a dark cool-gray with the matte finish of lead-and-iron-mordant foundry-residue on hand-cast Spanish-Toledo-period lead.

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.

#1f013b
Original
#00123d
Protanopia
#00123a
Deuteranopia
#18111f
Tritanopia
#0c0c0c
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
18.65:1
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
1.13:1

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
##1F013B
Display P3
Display P3
color(display-p3 0.1081 0.0097 0.2211)
P3 has subtle headroomOKLCH chroma 0.102

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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