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Plumb Brioche

#aa8c19
Notes

Plumb Brioche (#AA8C19) is a true amber 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 (48°, 74%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#aa8c19
RGB
rgb(170, 140, 25)
HSL
hsl(48, 74%, 38%)
HWB
hwb(48 10% 33%)
OKLCH
oklch(65.0% 0.126 92.6)
P3
color(display-p3 0.6478 0.5534 0.2051)
HSV
hsv(48, 85%, 67%)
LAB
lab(59.32% 0.48 59.08)
LCH
lch(59.32% 59.08 89.54)
CMYK
cmyk(0%, 18%, 85%, 33%)

Etymology

Plumb
adjective

Latin plumbum, lead — referring to the lead-weighted plumb-line of pre-modern carpentry. As a color modifier, plumb implies a clear-and-vertical-true quality where the hue carries the visual register of gravity-aligned-and-perfectly-vertical surface. Sits at the crisp-and-balanced end of the grid, parallel to level and squared in usage.

Brioche
noun

The French enriched bread — egg- and butter-rich dough that produces a soft, golden, slightly sweet loaf used in brioche à tête, pain au lait, and kouign-amann. The color refers to the inside of a freshly baked brioche: a soft, slightly warm pale yellow with the matte finish of egg-rich crumb.

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.

#aa8c19
Original
#9d8a00
Protanopia
#a49222
Deuteranopia
#b97f78
Tritanopia
#8a8a8a
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
3.24:1
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
6.47:1

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
##AA8C19
Display P3
Display P3
color(display-p3 0.6478 0.5534 0.2051)
P3 has subtle headroomOKLCH chroma 0.126

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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