#648589Arctic (#648589) is a mid-tone, muted sky blue with an OKLCH hue of 205°, lightness 0.59 and chroma 0.038. 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 | #648589 |
|---|---|
| RGB | rgb(100, 133, 137) |
| HSL | hsl(186, 16%, 46%) |
| HSV | hsv(186, 27%, 54%) |
| CMYK | cmyk(27%, 3%, 0%, 46%) |
| CIE Lab | lab(53.3 -10.6 -5.9) |
| OKLCH | oklch(0.593 0.038 205) |
Under warm 2700K interior light Arctic shifts subtly: drifts toward blue-green; in north-facing or shaded light it shifts subtly: leans toward blue. Overall drift across common illuminants is small (max ΔE ≈ 1.5), so it is a lighting-stable choice.
#6c8280 — ΔE 1.5, shifts subtly: drifts toward blue-green#698686 — ΔE 0.9, shifts subtly: drifts toward blue-green#648589 — ΔE 0.0, is virtually unchanged#64868b — ΔE 0.4, shifts subtly: leans toward blueTest Arctic 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 3.99:1 and against black 5.26:1, 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.
#c1dbde · #97b4b8 · #648589 · #4b6a6d · #2c474a · #0e2729
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.
#7caf9f · #5d9e99 · #648589 · #397689 · #36617b · #344d6a
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.
#9dbeec · #8e9eb4 · #648589 · #2e6c73 · #124f55 · #1f2d41
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.
#d2ebee · #a4cacf · #90a4a6 · #648589 · #844d48 · #27464a
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9efee · #8f9c9e · #648589 · #696262 · #1f2c2e · #020101
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.
#e8f5f6 · #becdcf · #648589 · #12292c · #000709 · #e34f4b
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#e8f5f6 · #becdcf · #648589 · #12292c · #000709 · #edbc4d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffedeb · #bc8b86 · #648589 · #8a534e · #441b18 · #000304
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffedeb · #b88a9b · #648589 · #855839 · #411a2b · #110300
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#faedfa · #ad8dae · #648589 · #78612e · #362600 · #030003
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f3efff · #9c92bb · #648589 · #8a534e · #282d00 · #050000
#7A979B · #90AAAD · #A7BDBF · #BED0D2 · #D6E3E5
#506E71 · #3D585B · #2B4245 · #1A2E30 · #091B1D
#6A8487 · #708284 · #758182
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.