#5588DDBlue Jay (#5588DD) is a mid-tone, saturated blue with an OKLCH hue of 260°, lightness 0.63 and chroma 0.14. 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 | #5588DD |
|---|---|
| RGB | rgb(85, 136, 221) |
| HSL | hsl(218, 67%, 60%) |
| HSV | hsv(218, 62%, 87%) |
| CMYK | cmyk(62%, 38%, 0%, 13%) |
| CIE Lab | lab(56.8 8.9 -48.5) |
| OKLCH | oklch(0.631 0.140 260) |
Under warm 2700K interior light Blue Jay shifts subtly: leans toward purple, loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2.2), so it is a lighting-stable choice.
#6186d0 — ΔE 2.2, shifts subtly: leans toward purple, loses intensity#5c89d9 — ΔE 1.0, shifts only faintly, with no single dominant change#5588dd — ΔE 0.0, is virtually unchanged#5488e0 — ΔE 0.5, is virtually unchangedTest Blue Jay 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 3.53:1 and against black 5.95:1, so black 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.
#d1e3ff · #91baff · #5588dd · #3e6cba · #20498d · #032762
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.
#59bbe4 · #4fa3e3 · #5588dd · #646ec3 · #6957a4 · #664283
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.
#b79cc8 · #5588dd · #416bb0 · #693386 · #0e326e · #290f36
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.
#f3b94c · #5588dd · #5b6a82 · #314a74 · #182d51 · #061329
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9f1e3 · #9ba5b7 · #5588dd · #746e65 · #242e3f · #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.
#f7f1e6 · #d2cbbf · #aaa193 · #382e1d · #170d00 · #5588dd
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#fff0d7 · #c99d4c · #5588dd · #916600 · #3e2900 · #000012
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fff0d7 · #dd8f63 · #5588dd · #747400 · #4d1e00 · #040300
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffedec · #e28787 · #5588dd · #3c822b · #093900 · #160001
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffecf4 · #da87ae · #5588dd · #916600 · #003729 · #100600
#6D9AE6 · #84ADEF · #9CBFF8 · #B5D1FF · #D3E4FF
#426FBB · #2F579B · #1D407B · #0B2A5D · #001540
#6189CC · #6D8ABA · #788AA9
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.