#556B2FDark Olive Green (#556B2F) is a dark, soft yellow-green with an OKLCH hue of 126°, lightness 0.5 and chroma 0.09. It sits on the transitional side of the color wheel. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #556B2F |
|---|---|
| RGB | rgb(85, 107, 47) |
| HSL | hsl(82, 39%, 30%) |
| HSV | hsv(82, 56%, 42%) |
| CMYK | cmyk(21%, 0%, 56%, 58%) |
| CIE Lab | lab(42.2 -18.8 30.6) |
| OKLCH | oklch(0.496 0.090 126) |
Under warm 2700K interior light Dark Olive Green shifts subtly: leans toward yellow; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1), so it is a lighting-stable choice.
#5a6829 — ΔE 1.0, shifts subtly: leans toward yellow#596b2d — ΔE 0.6, shifts subtly: leans toward yellow#556b2f — ΔE 0.0, is virtually unchanged#556c30 — ΔE 0.3, is virtually unchangedAgainst white it measures 5.95:1 and against black 3.53:1, 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.
#abbe90 · #849864 · #556b2f · #3d5118 · #202f00 · #070f00
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.
#609275 · #587f53 · #556b2f · #545516 · #4e4001 · #442d00
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.
#9bc7bc · #58af9d · #62887f · #556b2f · #3c4e1d · #243303
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.
#c1cab4 · #9ba988 · #8f74ac · #556b2f · #404737 · #222c12
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f4f0f9 · #b2b7ab · #7d7a81 · #556b2f · #464b3f · #010102
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.
#f4effa · #cbc6d2 · #9f99a6 · #261e2e · #05010b · #556b2f
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#afddd4 · #8bbf83 · #8568a4 · #556b2f · #212094 · #030f18
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#f6eeff · #a8b2e3 · #9e6790 · #556b2f · #3e4572 · #040003
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#e7f4ff · #90bae1 · #a96573 · #556b2f · #6b3643 · #000512
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#dff7fe · #7fc1d3 · #896ea6 · #556b2f · #6c392b · #020007
#6D814D · #86986B · #9FB089 · #BAC7A7 · #D5E0C7
#455923 · #364816 · #28370A · #1A2701 · #0E1800
#58693C · #5A6847 · #5D6652
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.