#59A4C1Surgical (#59A4C1) is a light, soft sky blue with an OKLCH hue of 225°, lightness 0.68 and chroma 0.086. 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 | #59A4C1 |
|---|---|
| RGB | rgb(89, 164, 193) |
| HSL | hsl(197, 46%, 55%) |
| HSV | hsv(197, 54%, 76%) |
| CMYK | cmyk(54%, 15%, 0%, 24%) |
| CIE Lab | lab(63.8 -15.1 -22) |
| OKLCH | oklch(0.682 0.086 225) |
Under warm 2700K interior light Surgical shifts subtly: leans toward blue-green, loses intensity; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 2), so it is a lighting-stable choice.
#67a0b5 — ΔE 2.0, shifts subtly: leans toward blue-green, loses intensity#62a5bd — ΔE 1.1, shifts subtly: leans toward blue-green#59a4c1 — ΔE 0.0, is virtually unchanged#58a5c4 — ΔE 0.5, is virtually unchangedTest Surgical 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 2.8:1 and against black 7.51:1, so black text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid white 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.
#e1f6ff · #94d4ee · #59a4c1 · #4087a1 · #1f6279 · #003e51
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.
#8accca · #6eb9c6 · #59a4c1 · #598db2 · #5976a0 · #57618a
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.
#b1b6d4 · #59a4c1 · #47849c · #52598e · #094a5e · #242740
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.
#bee6f7 · #aabfc8 · #59a4c1 · #a2674c · #3e5e6b · #2a3e47
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9efeb · #59a4c1 · #738086 · #504a47 · #142126 · #050201
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.
#faefea · #d4c7c1 · #aa9b95 · #34241c · #110401 · #59a4c1
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#e7e8c2 · #f3bd7c · #59a4c1 · #777da6 · #5e3a35 · #041111
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#d5d9b3 · #e09baa · #59a4c1 · #786450 · #563d38 · #071212
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffecf5 · #59a4c1 · #9c6d87 · #524e04 · #222000 · #040002
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f9edfe · #59a4c1 · #8e719a · #713b20 · #0d2600 · #130200
#72B2CC · #89C0D7 · #A0CEE1 · #B7DCEC · #CEEBF7
#4387A1 · #2D6B82 · #175064 · #003748 · #001F2B
#6AA2B9 · #78A0B0 · #859DA8
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.