#CEFF00Volt (#CEFF00) is a near-white, vivid yellow-green with an OKLCH hue of 123°, lightness 0.93 and chroma 0.228. 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 | #CEFF00 |
|---|---|
| RGB | rgb(206, 255, 0) |
| HSL | hsl(72, 100%, 50%) |
| HSV | hsv(72, 100%, 100%) |
| CMYK | cmyk(19%, 0%, 100%, 0%) |
| CIE Lab | lab(93.7 -41.2 90.4) |
| OKLCH | oklch(0.932 0.228 123) |
Under warm 2700K interior light Volt shifts subtly: leans toward yellow; 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.
#daf800 — ΔE 2.2, shifts subtly: leans toward yellow#d7ff00 — ΔE 1.1, shifts subtly: leans toward yellow#ceff00 — ΔE 0.0, is virtually unchanged#ceff0b — ΔE 0.1, is virtually unchangedTest Volt 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 1.17:1 and against black 17.93:1, 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.
#ceff00 · #b2dd00 · #8fb200 · #6e8900 · #4e6300 · #303e00
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.
#ceff00 · #e5db00 · #eabc00 · #e99d00 · #e57d00 · #de5c1a
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.
#ceff00 · #49c0a4 · #799800 · #007f69 · #465900 · #004034
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.
#ceff00 · #bccd9b · #94af50 · #9242e0 · #3a4a00 · #212c00
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#ceff00 · #cfc7dd · #899374 · #585261 · #1e2705 · #020005
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.
#f4effb · #cbc6d3 · #9e99a8 · #251e30 · #05010d · #ceff00
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ceff00 · #b2dbc9 · #f532c7 · #507251 · #36345a · #210609
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ceff00 · #d4c1f1 · #6b81fb · #900085 · #140070 · #060005
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ceff00 · #a5d1f5 · #0096e4 · #9e004c · #47001e · #000511
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ceff00 · #97d8e6 · #009fb7 · #7110ba · #480400 · #04000f
#D3FF51 · #D8FF72 · #DDFF8C · #E2FEA4 · #E8FEB9
#A7D000 · #82A200 · #5F7700 · #3E4F00 · #1F2A00
#D3FB66 · #D9F792 · #DEF2B5
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.