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Antiseptic Taro

#633987
Notes

Antiseptic Taro (#633987) is a true indigo 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 (272°, 41%, 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#633987
RGB
rgb(99, 57, 135)
HSL
hsl(272, 41%, 38%)
HWB
hwb(272 22% 47%)
OKLCH
oklch(43.3% 0.129 306.6)
P3
color(display-p3 0.3654 0.2313 0.5124)
HSV
hsv(272, 58%, 53%)
LAB
lab(32.54% 34.29 -36.70)
LCH
lch(32.54% 50.22 313.05)
CMYK
cmyk(27%, 58%, 0%, 47%)

Etymology

Antiseptic
adjective

Greek anti- (against) plus sēptikós (putrefying) — adjectival suffix -ic. As a color modifier, antiseptic implies a clear-and-disinfected-and-clinical quality, the crisp color of medical-laboratory and operating-theater hand-scrub-and-sanitizer surfaces. Sits at the crisp-and-clean end of the grid, parallel to sterile and sanitary in usage.

Taro
noun

Asian-Pacific Colocasia esculenta — a tropical Araceae root crop cultivated for its starchy corm, with deep-violet purple-flesh cultivars (the bun long and Lehua maoli taro) used for poi and ube-style purple desserts. Taro color refers to a freshly cut Colocasia esculenta purple-flesh corm: a saturated, slightly cool deep violet with the matte finish of anthocyanin-rich starchy taro-pulp. The Polynesian name taro spread to English.

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.

#633987
Original
#1d4b8a
Protanopia
#2d4d85
Deuteranopia
#5d485a
Tritanopia
#484848
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
8.52:1
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
2.47:1

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
##633987
Display P3
Display P3
color(display-p3 0.3654 0.2313 0.5124)
P3 has subtle headroomOKLCH chroma 0.129

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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