#7FFF00Chartreuse (#7FFF00) is a very light, vivid green with an OKLCH hue of 136°, lightness 0.89 and chroma 0.265. 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 | #7FFF00 |
|---|---|
| RGB | rgb(127, 255, 0) |
| HSL | hsl(90, 100%, 50%) |
| HSV | hsv(90, 100%, 100%) |
| CMYK | cmyk(50%, 0%, 100%, 0%) |
| CIE Lab | lab(89.9 -68.1 85.8) |
| OKLCH | oklch(0.890 0.265 136) |
Under warm 2700K interior light Chartreuse shifts subtly: leans toward yellow, loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2.2), so it is a lighting-stable choice.
#93f900 — ΔE 2.2, shifts subtly: leans toward yellow, loses intensity#8bff00 — ΔE 1.0, is virtually unchanged#7fff00 — ΔE 0.0, is virtually unchanged#7dff0a — ΔE 0.2, is virtually unchangedAgainst white it measures 1.3:1 and against black 16.21:1, 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.
#daffc9 · #7fff00 · #5cbd00 · #469200 · #306900 · #1c4300
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.
#7fff00 · #b8d800 · #c6b800 · #c79b00 · #c37f00 · #bc6200
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.
#7fff00 · #23d5ca · #58b600 · #009189 · #357200 · #00514c
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.
#7fff00 · #a1c491 · #c238ef · #2e6500 · #1c4300 · #0b2400
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#7fff00 · #c7b7ce · #778c6d · #564b5b · #112705 · #030005
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.
#f6eff9 · #cec5d1 · #a198a5 · #291d2d · #07010b · #7fff00
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#f7f6d0 · #7fff00 · #bccf95 · #f33096 · #493b62 · #210604
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fff0e9 · #7fff00 · #c1bbe5 · #c85f97 · #474161 · #131004
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#7fff00 · #9cc0f1 · #0080ff · #98002d · #45000f · #00051e
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#7fff00 · #85c9e5 · #0092bb · #7a009b · #3b1200 · #06000d
#95FF57 · #A8FF7B · #B9FF97 · #C8FFAF · #D6FFC4
#66D000 · #4FA300 · #387800 · #235000 · #0F2B00
#97F961 · #ACF28A · #BEEAAA
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.