#5D7B89Night Owl (#5D7B89) is a mid-tone, muted sky blue with an OKLCH hue of 228°, lightness 0.56 and chroma 0.041. 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 | #5D7B89 |
|---|---|
| RGB | rgb(93, 123, 137) |
| HSL | hsl(199, 19%, 45%) |
| HSV | hsv(199, 32%, 54%) |
| CMYK | cmyk(32%, 10%, 0%, 46%) |
| CIE Lab | lab(49.9 -7.1 -11.1) |
| OKLCH | oklch(0.565 0.041 228) |
Under warm 2700K interior light Night Owl shifts subtly: leans toward blue-green; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 1.5), so it is a lighting-stable choice.
#647880 — ΔE 1.5, shifts subtly: leans toward blue-green#627c86 — ΔE 0.9, shifts subtly: leans toward blue-green#5d7b89 — ΔE 0.0, is virtually unchanged#5d7c8b — ΔE 0.4, is virtually unchangedTest Night Owl 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 4.51:1 and against black 4.66:1, 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.
#b8d1dc · #8faab6 · #5d7b89 · #45606d · #263e49 · #091f28
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.
#6ea5a6 · #55939f · #5d7b89 · #41698a · #3f5477 · #3b4163
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.
#a9aee2 · #8f92ab · #5d7b89 · #2e6076 · #144457 · #212339
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.
#c4e2f0 · #ca957a · #5d7b89 · #4a5961 · #213d4a · #102128
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f8f0ec · #889398 · #5d7b89 · #605b58 · #1d282d · #030100
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.
#e8f4fa · #bfcdd4 · #5d7b89 · #162b34 · #000911 · #f0803e
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffeee5 · #b08671 · #5d7b89 · #7e4f35 · #3e1a05 · #000409
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffeee5 · #b38283 · #5d7b89 · #735727 · #40171a · #100600
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#feecf4 · #ad8297 · #5d7b89 · #605f29 · #292800 · #040002
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f8edfc · #a085a9 · #5d7b89 · #7e4f35 · #152d0c · #0f0200
#748F9B · #8BA3AE · #A3B7C1 · #BBCCD4 · #D4E1E7
#4B6672 · #39515C · #283D47 · #182A33 · #091920
#637A85 · #687981 · #6D787D
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.