#1B416FAegean Blue (#1B416F) is a dark, soft blue with an OKLCH hue of 255°, lightness 0.37 and chroma 0.09. 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 | #1B416F |
|---|---|
| RGB | rgb(27, 65, 111) |
| HSL | hsl(213, 61%, 27%) |
| HSV | hsv(213, 76%, 44%) |
| CMYK | cmyk(76%, 41%, 0%, 56%) |
| CIE Lab | lab(27.2 3.8 -30.5) |
| OKLCH | oklch(0.373 0.090 255) |
Under warm 2700K interior light Aegean Blue shifts subtly: leans toward purple; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.3), so it is a lighting-stable choice.
#234068 — ΔE 1.3, shifts subtly: leans toward purple#20426d — ΔE 0.7, is virtually unchanged#1b416f — ΔE 0.0, is virtually unchanged#1a4171 — ΔE 0.3, is virtually unchangedTest Aegean Blue 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 10.33:1 and against black 2.03:1, 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.
#93afd3 · #6a89b1 · #42648f · #1b416f · #002048 · #00051c
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.
#2d6a7e · #1d5678 · #1b416f · #222d5b · #211a45 · #1b092e
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.
#bdadcf · #7899c2 · #866aa2 · #625570 · #1b416f · #07274c
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.
#e3b87e · #6c8099 · #54606e · #1b416f · #13253c · #040c19
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f7f1e9 · #9ba3ad · #5c5853 · #1b416f · #222a34 · #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.
#f8f1e7 · #d3cbc0 · #aba295 · #3b3021 · #190f02 · #1b416f
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#fdf0de · #bd9c6f · #765011 · #1b416f · #3b2400 · #00020f
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#fdf0de · #c9947d · #615b12 · #1b416f · #471a03 · #050300
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#ffeded · #cb9094 · #42642e · #1b416f · #183104 · #0b0001
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#ffebf6 · #c390ac · #765011 · #1b416f · #003322 · #130700
#3C5D87 · #5C7AA0 · #7E98B9 · #A1B7D3 · #C5D6EC
#143660 · #0D2C51 · #062242 · #021835 · #000F27
#254265 · #2D425C · #354252
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.