#005F6APetrol (#005F6A) is a dark, soft sky blue with an OKLCH hue of 208°, lightness 0.44 and chroma 0.076. 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 | #005F6A |
|---|---|
| RGB | rgb(0, 95, 106) |
| HSL | hsl(186, 100%, 21%) |
| HSV | hsv(186, 100%, 42%) |
| CMYK | cmyk(100%, 10%, 0%, 58%) |
| CIE Lab | lab(36.4 -19.4 -13.1) |
| OKLCH | oklch(0.444 0.076 208) |
Under warm 2700K interior light Petrol 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 ≈ 1.3), so it is a lighting-stable choice.
#1b5d63 — ΔE 1.3, shifts subtly: drifts toward blue-green#106068 — ΔE 0.7, shifts subtly: leans toward blue-green#005f6a — ΔE 0.0, is virtually unchanged#005f6c — ΔE 0.3, shifts subtly: leans toward blueAgainst white it measures 7.38:1 and against black 2.85:1, 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.
#7bb0b9 · #4d8b95 · #005f6a · #00444c · #002227 · #000508
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.
#4d8175 · #2d716f · #005f6a · #044b60 · #0d3852 · #102542
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.
#9dadc7 · #738ebc · #637187 · #005f6a · #004149 · #00262b
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.
#9abdc3 · #b2776e · #005f6a · #293a3d · #002125 · #000709
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9efee · #a3b0b2 · #726b6a · #005f6a · #313e41 · #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.
#faefed · #d3c6c4 · #a89a97 · #32211f · #0f0302 · #005f6a
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#d5d7b1 · #f06b29 · #4e6c99 · #005f6a · #4d303c · #061410
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffedea · #ce9dac · #8e623f · #005f6a · #572c3b · #120400
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#fbedfa · #c3a0c1 · #7f6b35 · #005f6a · #4a390b · #030003
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f3efff · #b2a5cf · #945c54 · #005f6a · #384015 · #050000
#377781 · #5B9099 · #7DAAB1 · #9FC4CA · #C2DEE3
#004F59 · #004048 · #003138 · #002328 · #00161A
#245D65 · #355B61 · #42585C
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.