#677F70Ecological (#677F70) is a mid-tone, muted green with an OKLCH hue of 158°, lightness 0.57 and chroma 0.036. It sits on the cool side of the color wheel. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #677F70 |
|---|---|
| RGB | rgb(103, 127, 112) |
| HSL | hsl(143, 10%, 45%) |
| HSV | hsv(143, 19%, 50%) |
| CMYK | cmyk(19%, 0%, 12%, 50%) |
| CIE Lab | lab(51 -11.9 5.3) |
| OKLCH | oklch(0.573 0.036 158) |
Under warm 2700K interior light Ecological shifts subtly: leans toward yellow-green; in north-facing or shaded light it shifts subtly: leans toward blue-green. Overall drift across common illuminants is small (max ΔE ≈ 1.4), so it is a lighting-stable choice.
#6e7c68 — ΔE 1.4, shifts subtly: leans toward yellow-green#6c806d — ΔE 0.9, shifts subtly: leans toward yellow-green#677f70 — ΔE 0.0, is virtually unchanged#678072 — ΔE 0.3, shifts subtly: leans toward blue-greenTest Ecological 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 4.33:1 and against black 4.85:1, so black 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.
#c1d4c8 · #98aea0 · #677f70 · #4e6456 · #2e4136 · #112218
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.
#71a8a4 · #5d9887 · #677f70 · #50714c · #4d5c34 · #484821
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.
#7ac3cf · #7c9da3 · #677f70 · #3b674e · #224a34 · #082d32
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.
#d1e5d8 · #a6c4b1 · #8e9e94 · #677f70 · #744868 · #2a4134
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f7eff4 · #8c968f · #677f70 · #625d60 · #202a23 · #020101
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.
#ebf5ee · #c2cdc6 · #677f70 · #1b2b22 · #000a03 · #de63c0
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#ebf5ee · #c2cdc6 · #677f70 · #1b2b22 · #000a03 · #f2ba4d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#fdecf7 · #ac85a0 · #677f70 · #7a4d6d · #3a1932 · #000501
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fdecf7 · #9d8ab0 · #677f70 · #824c57 · #2f1d3f · #060001
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#eef1ff · #8a90b8 · #677f70 · #834f3f · #401a0e · #010007
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#e8f3ff · #7697b7 · #677f70 · #7a4d6d · #3a2000 · #040002
#7D9284 · #93A699 · #A9B9AF · #C0CEC5 · #D8E2DB
#53695C · #415448 · #2F3F35 · #1E2C23 · #0E1A13
#6B7E72 · #6F7C73 · #727B75
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.