#548D44Fern (#548D44) is a mid-tone, soft green with an OKLCH hue of 139°, lightness 0.59 and chroma 0.121. 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 | #548D44 |
|---|---|
| RGB | rgb(84, 141, 68) |
| HSL | hsl(107, 35%, 41%) |
| HSV | hsv(107, 52%, 55%) |
| CMYK | cmyk(40%, 0%, 52%, 45%) |
| CIE Lab | lab(53.3 -33.4 32.9) |
| OKLCH | oklch(0.586 0.121 139) |
Under warm 2700K interior light Fern shifts subtly: leans toward yellow; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.4), so it is a lighting-stable choice.
#5e893d — ΔE 1.4, shifts subtly: leans toward yellow#5a8d41 — ΔE 0.7, shifts subtly: leans toward yellow#548d44 — ΔE 0.0, is virtually unchanged#538e45 — ΔE 0.3, is virtually unchangedTest Fern 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 3.98:1 and against black 5.27:1, 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.
#b5e2a9 · #89bc7c · #548d44 · #3c712d · #1d4c0c · #062900
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.
#5cb499 · #52a171 · #548d44 · #5f7520 · #615d00 · #5a4700
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.
#3ed2cc · #6da7a3 · #548d44 · #3f6d31 · #255019 · #003230
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.
#d6ebd0 · #aacba2 · #92a38e · #548d44 · #794387 · #2e4627
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f7eef9 · #909b8d · #548d44 · #666067 · #212c1e · #020002
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.
#f7eff9 · #cec5d1 · #a298a5 · #291d2d · #07010a · #548d44
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#d4d5b0 · #8a9b6e · #548d44 · #84295f · #3d3254 · #200504
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fbecff · #958dcf · #548d44 · #93416d · #291b56 · #090003
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#eaf2ff · #7398d3 · #548d44 · #9b4146 · #4f0613 · #00000f
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#e2f5ff · #4fa2c7 · #548d44 · #7f498d · #451a00 · #040007
#6D9F5F · #85B179 · #9EC394 · #B7D6AF · #D0E8CA
#427533 · #305E23 · #1F4812 · #0E3303 · #031E00
#5E8A52 · #67865E · #6F836A
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.