#A3EFB8Ultra Mint (#A3EFB8) is a very light, soft green with an OKLCH hue of 152°, lightness 0.89 and chroma 0.107. 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 | #A3EFB8 |
|---|---|
| RGB | rgb(163, 239, 184) |
| HSL | hsl(137, 70%, 79%) |
| HSV | hsv(137, 32%, 94%) |
| CMYK | cmyk(32%, 0%, 23%, 6%) |
| CIE Lab | lab(88.4 -34.5 19.3) |
| OKLCH | oklch(0.888 0.107 152) |
Under warm 2700K interior light Ultra Mint shifts subtly: leans toward yellow-green; in north-facing or shaded light it shifts subtly: leans toward blue-green. Overall drift across common illuminants is small (max ΔE ≈ 2.1), so it is a lighting-stable choice.
#b1e9ab — ΔE 2.1, shifts subtly: leans toward yellow-green#adf0b4 — ΔE 1.2, shifts subtly: leans toward yellow-green#a3efb8 — ΔE 0.0, is virtually unchanged#a2f0bb — ΔE 0.4, shifts subtly: leans toward blue-greenTest Ultra Mint 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 1.35:1 and against black 15.6:1, 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.
#d2ffdd · #a3efb8 · #72b485 · #518c63 · #326642 · #124324
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.
#b2fce0 · #a3efb8 · #a8d695 · #abbd77 · #a9a460 · #a38c51
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.
#a3efb8 · #92c4ca · #6eab7f · #008d98 · #366e48 · #124d53
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.
#a3efb8 · #c382b9 · #667a6b · #3b5e45 · #203f2a · #0e2114
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#a3efb8 · #c3bac1 · #7b887e · #544d52 · #17241a · #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.
#f9eef6 · #d1c5ce · #a597a2 · #2c1c29 · #090108 · #a3efb8
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#f4f6cf · #a3efb8 · #a3d795 · #d85e87 · #4d3a5c · #1f0503
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#a3efb8 · #cab6c6 · #8e78af · #7d324a · #291143 · #100003
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#a3efb8 · #b6bcd2 · #7381b8 · #803527 · #420600 · #01000d
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#a3efb8 · #acc0d0 · #548ab3 · #713669 · #331900 · #050004
#AFF1C1 · #BBF3C9 · #C6F5D2 · #D1F8DA · #DCF9E3
#80C493 · #5E9B70 · #3E734E · #1F4E2F · #002C12
#B0EBC0 · #BDE6C7 · #C8E2CE
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.