#5D66AABellflower (#5D66AA) is a mid-tone, soft blue with an OKLCH hue of 276°, lightness 0.53 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 | #5D66AA |
|---|---|
| RGB | rgb(93, 102, 170) |
| HSL | hsl(233, 31%, 52%) |
| HSV | hsv(233, 45%, 67%) |
| CMYK | cmyk(45%, 40%, 0%, 33%) |
| CIE Lab | lab(45.3 15 -37.6) |
| OKLCH | oklch(0.534 0.107 276) |
Under warm 2700K interior light Bellflower shifts subtly: leans toward purple; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.7), so it is a lighting-stable choice.
#6364a0 — ΔE 1.7, shifts subtly: leans toward purple#6267a7 — ΔE 0.9, shifts subtly: leans toward purple#5d66aa — ΔE 0.0, is virtually unchanged#5d66ac — ΔE 0.3, is virtually unchangedTest Bellflower 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 5.32:1 and against black 3.95:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.
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.
#b4bef6 · #8c96d4 · #5d66aa · #454c8a · #272b61 · #0d0b3a
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.
#6396c0 · #5d7fb7 · #5d66aa · #5e508e · #593c71 · #512b54
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.
#ce90cb · #9d7f9b · #5d66aa · #444b82 · #2c3061 · #2c122b
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.
#d8c471 · #888ca1 · #5d66aa · #454b6e · #2a2f4c · #121528
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f4f2e7 · #848695 · #5d66aa · #55544c · #1f212e · #010100
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.
#f5f2e6 · #cecbbe · #a4a091 · #302b18 · #0e0900 · #5d66aa
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#d7dab4 · #d5a66a · #8d769a · #5d66aa · #774d46 · #190825
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#f8f2da · #aa7d4d · #5d66aa · #445e0d · #341b00 · #010400
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffede8 · #b47563 · #5d66aa · #00643a · #002b15 · #190100
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffecef · #b4717f · #5d66aa · #635300 · #002925 · #080400
#737DBA · #8A94CA · #A3ABDA · #BCC3EA · #D5DBFA
#4C5390 · #3B4278 · #2B3060 · #1C2049 · #0F1033
#60689D · #636A91 · #676B84
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.