#3C4151Lava Stone (#3C4151) is a grey neutral with an OKLCH hue of 271°, lightness 0.38 and chroma 0.028. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #3C4151 |
|---|---|
| RGB | rgb(60, 65, 81) |
| HSL | hsl(226, 15%, 28%) |
| HSV | hsv(226, 26%, 32%) |
| CMYK | cmyk(26%, 20%, 0%, 68%) |
| CIE Lab | lab(27.7 2.1 -10.3) |
| OKLCH | oklch(0.377 0.028 271) |
Under warm 2700K interior light Lava Stone shifts subtly: takes on a purple cast; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.1), so it is a lighting-stable choice.
#3f3f4b — ΔE 1.1, shifts subtly: takes on a purple cast#3f414f — ΔE 0.6, is virtually unchanged#3c4151 — ΔE 0.0, is virtually unchanged#3c4152 — ΔE 0.2, is virtually unchangedTest Lava Stone 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 10.16:1 and against black 2.07:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid black 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.
#979ba8 · #717685 · #4e5362 · #3c4151 · #101420 · #010105
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.
#426780 · #385376 · #3c4151 · #302c53 · #2a1a3c · #200b26
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.
#c4aec6 · #8a96bd · #8f6a93 · #685669 · #3c4151 · #1d2547
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.
#d6c38c · #777f96 · #5b5f6d · #3c4151 · #1e243a · #090c18
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f4f2ea · #9fa2ac · #5c5a55 · #3c4151 · #272a34 · #010100
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.
#eff2f9 · #c6c9d2 · #3c4151 · #1f232e · #02030c · #e5c04d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#f7f2e1 · #b0a278 · #695823 · #3c4151 · #362900 · #000007
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#f7f2e1 · #bf9b7d · #53612e · #3c4151 · #412202 · #010100
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffedea · #c5958c · #386644 · #3c4151 · #0c331a · #050000
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffecf1 · #c393a0 · #695823 · #3c4151 · #00332c · #080400
#575C6B · #747886 · #9296A2 · #B1B5BF · #D2D4DC
#323645 · #282C39 · #1F222D · #151822 · #0D0F17
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.