#5539CCBlurple (#5539CC) is a dark, vivid blue with an OKLCH hue of 283°, lightness 0.47 and chroma 0.213. 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 | #5539CC |
|---|---|
| RGB | rgb(85, 57, 204) |
| HSL | hsl(251, 59%, 51%) |
| HSV | hsv(251, 72%, 80%) |
| CMYK | cmyk(58%, 72%, 0%, 20%) |
| CIE Lab | lab(36.4 50.8 -71.8) |
| OKLCH | oklch(0.474 0.213 283) |
Under warm 2700K interior light Blurple shifts subtly: drifts toward purple, loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2.1), so it is a lighting-stable choice.
#5a3ac0 — ΔE 2.1, shifts subtly: drifts toward purple, loses intensity#593bc9 — ΔE 0.9, shifts subtly: drifts toward purple#5539cc — ΔE 0.0, is virtually unchanged#5539cf — ΔE 0.5, is virtually unchangedTest Blurple 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 7.39:1 and against black 2.84:1, 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.
#a5a3ff · #7e74f2 · #5539cc · #3f1aa7 · #220069 · #080029
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.
#1780dd · #3d60d9 · #5539cc · #5e1ba4 · #5c0077 · #4e004a
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.
#e498d3 · #e157c8 · #9f5f91 · #5539cc · #3c229a · #260072
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.
#d9c800 · #9494dd · #7677a1 · #5539cc · #383178 · #1f1c45
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f5f3dd · #adafcd · #787667 · #5539cc · #40405e · #040300
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.
#f3f2e7 · #cccbbd · #a19f90 · #2b2915 · #0a0700 · #5539cc
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#faf1cb · #8df749 · #7e5b9f · #5539cc · #3b4e41 · #030e1f
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#f9f5c3 · #ee9f00 · #4c8800 · #5539cc · #5d3b00 · #000200
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffeee7 · #ff8f5f · #008b61 · #5539cc · #005137 · #210400
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffedee · #ff8897 · #827800 · #5539cc · #004e4d · #050300
#6A5CDB · #817BE9 · #9B98F7 · #B6B7FF · #D4D6FF
#472BB0 · #391C96 · #2C0C7C · #1F0062 · #130043
#5447B5 · #54509E · #565686
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.