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Buttressed Catnip Brick

#e3536d
Notes

Buttressed Catnip Brick (#E3536D) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (349°, 72%, 61%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#e3536d
RGB
rgb(227, 83, 109)
HSL
hsl(349, 72%, 61%)
HWB
hwb(349 33% 11%)
OKLCH
oklch(64.1% 0.179 12.9)
P3
color(display-p3 0.8250 0.3642 0.4349)
HSV
hsv(349, 63%, 89%)
LAB
lab(55.71% 57.73 15.84)
LCH
lch(55.71% 59.87 15.35)
CMYK
cmyk(0%, 63%, 52%, 11%)

Etymology

Buttressed
adjective

Old French bouterez, thrusting-mass — past-participle of buttress, derived from bouter (to thrust). As a color modifier, buttressed implies a saturated-and-architecturally-supported quality, the deep-rich color of Gothic-Cathedral flying-buttress-and-rib-vault stone-architecture. Sits at the bold-and-fortified end of the grid, parallel to fortified and reinforced.

Catnip
modifier

Old English catte-nepe, cat-mint-or-catnip. As a color modifier, catnip implies a cat-mint-and-grey-green-cottage-herb quality, the visual register of English-cottage-and-Quaker-herb-garden-catnip hand-cat-mint-and-grey-green-cottage-herb English-cottage-and-Quaker-herb-garden-catnip-and-Tudor-still-room catnip-and-cat-mint surfaces under English-cottage-and-Quaker-herb-garden-catnip-and-Tudor-still-room Sussex-cottage-and-New-England-Quaker-garden cottage-herb-light. Sits at the modifier-and-flavor end of the grid, parallel to hyssop and lovage 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.

#e3536d
Original
#75736d
Protanopia
#9a906a
Deuteranopia
#f73a5d
Tritanopia
#737373
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
3.67:1
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
5.72:1

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
##E3536D
Display P3
Display P3
color(display-p3 0.8250 0.3642 0.4349)
P3 has subtle headroomOKLCH chroma 0.179

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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