#A0522DSienna (#A0522D) is a mid-tone, soft red with an OKLCH hue of 45°, lightness 0.53 and chroma 0.115. It sits on the warm side of the color wheel. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #A0522D |
|---|---|
| RGB | rgb(160, 82, 45) |
| HSL | hsl(19, 56%, 40%) |
| HSV | hsv(19, 72%, 63%) |
| CMYK | cmyk(0%, 49%, 72%, 37%) |
| CIE Lab | lab(43.8 29.3 35.6) |
| OKLCH | oklch(0.526 0.115 45) |
Under warm 2700K interior light Sienna is virtually unchanged; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 0.7), so it is a lighting-stable choice.
#a24f28 — ΔE 0.7, is virtually unchanged#a3522b — ΔE 0.6, is virtually unchanged#a0522d — ΔE 0.0, is virtually unchanged#a0532e — ΔE 0.2, is virtually unchangedAgainst white it measures 5.62:1 and against black 3.74:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.
One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.
#f0ae92 · #cc8565 · #a0522d · #803915 · #541c00 · #270700
The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.
#ad874c · #a86d37 · #a0522d · #8c3f36 · #752f3a · #5c223b
The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.
#bba64a · #928960 · #a0522d · #793a1c · #592102 · #231c00
One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.
#58c8f0 · #9e857a · #a0522d · #69412f · #472516 · #240f05
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#e7f4fa · #92817a · #a0522d · #4a5357 · #2d1d16 · #000203
This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.
#e7f4fa · #beced4 · #91a3aa · #172e36 · #000b13 · #a0522d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#d6dbb5 · #37a3ee · #ac6779 · #a0522d · #415288 · #07082f
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#e0f6ff · #2e9696 · #a0522d · #1d528f · #002828 · #00051c
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#defaec · #499777 · #a0522d · #4c468e · #1f154d · #000502
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#e8f7e0 · #6d9258 · #a0522d · #005b74 · #320c40 · #00050b
#B26C4C · #C48569 · #D69F87 · #E7B9A5 · #F8D4C4
#874120 · #703112 · #592205 · #421400 · #2A0900
#96593D · #8B5E4B · #806357
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.