#279D9FBaltic (#279D9F) is a mid-tone, soft blue-green with an OKLCH hue of 197°, lightness 0.64 and chroma 0.099. 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 | #279D9F |
|---|---|
| RGB | rgb(39, 157, 159) |
| HSL | hsl(181, 61%, 39%) |
| HSV | hsv(181, 75%, 62%) |
| CMYK | cmyk(75%, 1%, 0%, 38%) |
| CIE Lab | lab(59 -30.2 -10.2) |
| OKLCH | oklch(0.635 0.099 197) |
Under warm 2700K interior light Baltic shifts subtly: leans toward green; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.8), so it is a lighting-stable choice.
#409a95 — ΔE 1.8, shifts subtly: leans toward green#369e9c — ΔE 1.0, shifts subtly: leans toward green#279d9f — ΔE 0.0, is virtually unchanged#249ea1 — ΔE 0.3, is virtually unchangedTest Baltic 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 3.28:1 and against black 6.41:1, 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.
#a7f3f4 · #74cccd · #279d9f · #008082 · #00595a · #003435
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.
#7abad7 · #53abbd · #279d9f · #288a7c · #30775b · #36633e
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.
#92adc8 · #279d9f · #1b7c7e · #1c5485 · #004041 · #061f36
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.
#a6dbdb · #98b3b3 · #279d9f · #9b5156 · #275455 · #183535
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#fbeeee · #99aaaa · #279d9f · #766e6e · #203232 · #020000
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.
#fceeee · #d6c5c6 · #ac9999 · #362021 · #120203 · #279d9f
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffeded · #d39295 · #279d9f · #a2575c · #51181f · #000202
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#d8d6b1 · #da7ca5 · #279d9f · #71564b · #4c353e · #03110a
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#faecff · #ba97c8 · #279d9f · #916822 · #412900 · #030006
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f0f0ff · #a29fd6 · #279d9f · #a2575c · #333000 · #0f0001
#51ACAE · #70BCBD · #8ECCCC · #AADCDC · #C5EBEC
#0C8284 · #006769 · #004E4F · #003536 · #001F1F
#4A9A9B · #609696 · #729292
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.