Widebody; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Distraction; Confusion; Human-Machine Interface
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Aircraft; Equipment / Tooling; Human Factors; Procedure
We were flying the CASTA6 RNAV departure from LAX. At about FL180; ATC asked what our normal airspeed was. As Pilot Monitoring; I responded .80 or 320 knots. At the time; our speed was about 280 knots. ATC then asked if we had been cleared for normal speed and I responded in the affirmative. At that point; both of us checked the chart and found the speed restriction of 250 knots until cleared for higher. We had not seen that restriction during our departure brief. This chart has not been updated to the new format; so the restriction is printed in black rather than magenta. Speed restriction on the RNAV departure chart is not printed in a location that is most useful on the chart. Very few of the departures from LAX have a speed restriction; so it is easily overlooked.Speed restrictions on departure charts should be printed on the routing where appropriate; rather than at some more general location that will be overlooked when the chart is zoomed in on an EFB. Many charts are not readable when displayed in their entirety on an EFB. We need all pertinent restrictions to be printed at the appropriate portion of the routing.
I have flown 6 of the 20+ departures out of LAX in the past; this was my first CASTA. CASTA is 1 of 6 with a speed restriction. I incorrectly assumed that CASTA was like previous flown SIDs without a speed restriction. During my departure brief I was using the tablet and was unable to see the entire chart without scrolling. I did not fully scan the upper right hand corner of the chart to see the speed restriction.
Air carrier flight crew reported exceeding the 250 kts speed restriction on the LAX CASTA 6 Departure.