#333399Bluebell (#333399) is a dark, saturated blue with an OKLCH hue of 276°, lightness 0.39 and chroma 0.162. It sits on the cool side of the color wheel. In practice it behaves as an accent color: strong in focal moments, dominant over large fields.
| HEX | #333399 |
|---|---|
| RGB | rgb(51, 51, 153) |
| HSL | hsl(240, 50%, 40%) |
| HSV | hsv(240, 67%, 60%) |
| CMYK | cmyk(67%, 67%, 0%, 40%) |
| CIE Lab | lab(27.8 33.2 -55.7) |
| OKLCH | oklch(0.391 0.162 276) |
Under warm 2700K interior light Bluebell 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.
#383390 — ΔE 1.7, shifts subtly: leans toward purple#363496 — ΔE 0.7, is virtually unchanged#333399 — ΔE 0.0, is virtually unchanged#33339b — ΔE 0.3, is virtually unchangedTest Bluebell 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 10.12:1 and against black 2.07:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid black 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.
#8693e3 · #606bc4 · #333399 · #231c7c · #0d0048 · #010011
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.
#006ca9 · #1f51a4 · #333399 · #3b1a7a · #390059 · #2d0032
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.
#daa7d8 · #8693eb · #af55ad · #795078 · #333399 · #1f1a6d
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.
#e4c223 · #767fb4 · #5c6180 · #333399 · #1f2254 · #0a0c28
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f6f2e1 · #9fa4ba · #615e53 · #333399 · #292c42 · #020100
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 · #333399
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#b2e2dd · #9abf50 · #a176aa · #4a624a · #333399 · #030f1b
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fbf2ce · #db9342 · #4d6900 · #333399 · #452600 · #010400
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffede9 · #e9856b · #007140 · #333399 · #00391d · #240100
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffecf0 · #e88098 · #6f5d00 · #333399 · #003732 · #080400
#4C54AE · #6873C3 · #8793D8 · #A7B2ED · #CAD3FF
#2A2985 · #211E71 · #19145F · #110A4C · #0A023B
#353A88 · #383F76 · #3D4265
Its chroma is high enough to carry accents, calls to action, and focal moments; large fields of it will dominate a composition. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.