#00FA9AMedium Spring Green (#00FA9A) is a very light, vivid green with an OKLCH hue of 157°, lightness 0.87 and chroma 0.207. 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 | #00FA9A |
|---|---|
| RGB | rgb(0, 250, 154) |
| HSL | hsl(157, 100%, 49%) |
| HSV | hsv(157, 100%, 98%) |
| CMYK | cmyk(100%, 0%, 38%, 2%) |
| CIE Lab | lab(87.3 -70.7 32.5) |
| OKLCH | oklch(0.867 0.207 157) |
Under warm 2700K interior light Medium Spring Green shifts subtly: leans toward yellow-green; 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.
#50f48e — ΔE 2.2, shifts subtly: leans toward yellow-green#38fb96 — ΔE 1.1, shifts subtly: leans toward yellow-green#00fa9a — ΔE 0.0, is virtually unchanged#00fb9d — ΔE 0.4, is virtually unchangedAgainst white it measures 1.39:1 and against black 15.14:1, 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.
#d1ffe1 · #00fa9a · #00c075 · #009559 · #006b3f · #004426
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.
#94ffe0 · #00fa9a · #70de5e · #93bf11 · #a3a100 · #a38500
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.
#00fa9a · #56c5d6 · #00b06b · #008695 · #006c3f · #004851
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.
#00fa9a · #e45bc6 · #4f795f · #005f37 · #003d21 · #001e0d
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#00fa9a · #c3b0bd · #6c8776 · #554851 · #062615 · #030002
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.
#f9eef6 · #d1c4cd · #a597a1 · #2d1c28 · #090107 · #00fa9a
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#00fa9a · #d1a8c5 · #ba52a3 · #850070 · #3b0031 · #000501
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffebe6 · #00fa9a · #e5afb6 · #b281d3 · #373f60 · #051211
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#00fa9a · #acb3de · #6971e0 · #892400 · #3e0900 · #010011
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#00fa9a · #97bbdc · #0084d7 · #850070 · #301900 · #060004
#55FCA7 · #78FDB4 · #94FFC0 · #AFFFCE · #C8FFDC
#00CC7D · #00A061 · #007646 · #004F2D · #002B16
#66F3A7 · #8DEBB4 · #ABE3C0
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.