#66B7E1Malibu (#66B7E1) is a light, soft sky blue with an OKLCH hue of 233°, lightness 0.74 and chroma 0.1. 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 | #66B7E1 |
|---|---|
| RGB | rgb(102, 183, 225) |
| HSL | hsl(200, 67%, 64%) |
| HSV | hsv(200, 55%, 88%) |
| CMYK | cmyk(55%, 19%, 0%, 12%) |
| CIE Lab | lab(71 -13.1 -28.6) |
| OKLCH | oklch(0.744 0.100 233) |
Under warm 2700K interior light Malibu shifts subtly: loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2.3), so it is a lighting-stable choice.
#76b3d3 — ΔE 2.3, shifts subtly: loses intensity#70b8dd — ΔE 1.1, shifts only faintly, with no single dominant change#66b7e1 — ΔE 0.0, is virtually unchanged#65b8e4 — ΔE 0.4, is virtually unchangedTest Malibu 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 2.23:1 and against black 9.43:1, 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.
#e3f5ff · #8bd4fc · #66b7e1 · #3d86aa · #1b6180 · #003d56
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.
#93e2e7 · #78cee4 · #66b7e1 · #6b9ed1 · #6e87bb · #6d70a3
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.
#66b7e1 · #8a8aab · #357899 · #4f4a88 · #003f58 · #1e1c39
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.
#bdd3e0 · #66b7e1 · #ba794e · #497085 · #2e5062 · #1c323e
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#faefe9 · #66b7e1 · #85939b · #5c5551 · #18262d · #030100
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.
#fbefe8 · #d6c9c1 · #ad9e95 · #3b291f · #180801 · #66b7e1
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#d5d6b1 · #66b7e1 · #7199bf · #cf4344 · #492e3c · #010e30
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffeee4 · #66b7e1 · #bd7d7a · #705100 · #440c0f · #0d0500
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffecf3 · #66b7e1 · #b77c95 · #585c04 · #242600 · #070002
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#fcebfe · #66b7e1 · #a880ad · #814519 · #012d02 · #1c0600
#7DC2E7 · #92CDED · #A7D8F4 · #BBE3FA · #D0EEFF
#4D96BC · #347798 · #1A5975 · #003C54 · #002131
#78B5D6 · #88B3CB · #96B1C0
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.