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Resonant Brood Brick

#a12e1d
Notes

Resonant Brood Brick (#A12E1D) is a true red 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 (8°, 69%, 37%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a12e1d
RGB
rgb(161, 46, 29)
HSL
hsl(8, 69%, 37%)
HWB
hwb(8 11% 37%)
OKLCH
oklch(47.6% 0.154 31.4)
P3
color(display-p3 0.5820 0.2158 0.1485)
HSV
hsv(8, 82%, 63%)
LAB
lab(37.16% 46.37 37.32)
LCH
lch(37.16% 59.53 38.83)
CMYK
cmyk(0%, 71%, 82%, 37%)

Etymology

Resonant
adjective

Latin resonāns, echoing — present-participle of resonate, sharing root with sonance. As a color modifier, resonant implies a saturated-and-deep-vibrating quality where the hue carries low-frequency visual richness. Sits at the bold-and-resonant end of the grid, parallel to sonorous and resounding in usage.

Brood
modifier

Old English brōd, young-of-birds-or-to-ponder. As a color modifier, brood implies a hen-and-pondering-and-darkly-thinking quality, the visual register of Heathcliff-and-Hamlet-brood hand-hen-and-pondering-and-darkly-thinking Heathcliff-and-Hamlet-and-Byronic-hero brooded-and-pondering-and-darkly-thinking surfaces under Heathcliff-and-Hamlet-and-Byronic-hero stormy-and-overcast-and-introspective Yorkshire-moor-light. Sits at the modifier-and-mood end of the grid, parallel to mope and sigh in usage.

Brick
noun

Fired clay, mineral red. The color refers to common building brick — iron-rich earthenware kilned to the specific dusky red-orange of a Victorian terrace, a Roman aqueduct, an adobe wall in New Mexico. Less saturated than ruby, warmer than burgundy, with a chalky cast that reads as architectural rather than decorative.

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.

#a12e1d
Original
#50471a
Protanopia
#6d6118
Deuteranopia
#b2002b
Tritanopia
#454545
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
7.18:1
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
2.92:1

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
##A12E1D
Display P3
Display P3
color(display-p3 0.5820 0.2158 0.1485)
P3 has subtle headroomOKLCH chroma 0.154

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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