#C1C2C3Magnesium (#C1C2C3) is a grey neutral with an OKLCH hue of 248°, lightness 0.81 and chroma 0.002. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #C1C2C3 |
|---|---|
| RGB | rgb(193, 194, 195) |
| HSL | hsl(210, 2%, 76%) |
| HSV | hsv(210, 1%, 76%) |
| CMYK | cmyk(1%, 1%, 0%, 24%) |
| CIE Lab | lab(78.4 -0.2 -0.6) |
| OKLCH | oklch(0.814 0.002 248) |
Under warm 2700K interior light Magnesium shifts subtly: takes on a orange cast; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2), so it is a lighting-stable choice.
#c9bdb6 — ΔE 2.0, shifts subtly: takes on a orange cast#c8c3bf — ΔE 1.2, shifts only faintly, with no single dominant change#c1c2c3 — ΔE 0.0, is virtually unchanged#c1c3c6 — ΔE 0.4, is virtually unchangedTest Magnesium in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.
Against white it measures 1.78:1 and against black 11.77:1, so black text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid white text on this color entirely.
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.
#f1f2f3 · #c1c2c3 · #a1a2a3 · #7d7e7f · #58595a · #373839
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.
#b1e7f6 · #a3d8f4 · #c1c2c3 · #99afdc · #9499c4 · #8d83aa
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.
#c1c2c3 · #a69eb7 · #6588a9 · #6e5d8c · #304e6a · #342c43
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.
#dae8f4 · #c1c2c3 · #bf976c · #6b8196 · #4e6173 · #36424e
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#c1c2c3 · #aaa59f · #6d757c · #494541 · #151d24 · #020100
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.
#f1f2f2 · #c1c2c3 · #979798 · #565657 · #39393a · #f3a649
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#c1c2c3 · #b0a397 · #8c6d4d · #603d11 · #2c1600 · #00030d
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#c1c2c3 · #b0a397 · #93685a · #50450b · #340e04 · #040200
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#c1c2c3 · #b3a0a3 · #93656d · #3a4d1e · #132100 · #060001
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#c1c2c3 · #b0a1ab · #8b6680 · #603d11 · #002311 · #130600
#cbcccd · #d6d6d7 · #e0e1e1 · #eaebeb · #f5f5f5
#a1a2a3 · #818182 · #616162 · #404141 · #202021
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors.