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Plumbed Punjab

#3a3c1b
Notes

Plumbed Punjab (#3A3C1B) is a deep yellow 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 (64°, 38%, 17%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3a3c1b
RGB
rgb(58, 60, 27)
HSL
hsl(64, 38%, 17%)
HWB
hwb(64 11% 76%)
OKLCH
oklch(34.6% 0.051 111.9)
P3
color(display-p3 0.2289 0.2350 0.1230)
HSV
hsv(64, 55%, 24%)
LAB
lab(24.36% -6.67 19.97)
LCH
lch(24.36% 21.05 108.48)
CMYK
cmyk(3%, 0%, 55%, 76%)

Etymology

Plumbed
adjective

Latin plumbum, lead — past-participle of plumb (to measure depth with a lead-weighted line). As a color modifier, plumbed implies a deep-and-cool quality measured-to-its-fullest-depth, the dark cool-gray of lead-and-pewter metallic surfaces. Sits at the deep-and-cool end of the grid, parallel to fathomless with metallic register.

Punjab
noun

The northwestern Indian-Pakistani region — and the bright mustard-yellow of sarson (mustard) fields in March. Punjab refers to a sarson field in early spring: a saturated, slightly cool deep yellow with the matte finish of small clustered florets covering the entire landscape. Warmer than rapeseed.

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.

#3a3c1b
Original
#403918
Protanopia
#403a1d
Deuteranopia
#3e3934
Tritanopia
#393939
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
11.40:1
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
1.84:1

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
##3A3C1B
Display P3
Display P3
color(display-p3 0.2289 0.2350 0.1230)
Inside sRGBOKLCH chroma 0.051

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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